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Lancom Systems 8011 VPN User's Manual

1. off No connection established green blinking Dialling Ea green flashing Establishing first connection green inverse flashing Establishing further connection only if B channel 1 and B channel 2 share display green constantly on Connection established via B channel green flickering Data traffic send or receive com Connection status of the serial configuration port only LANCOM 8011 VPN off No session logged in green constantly on Serial configuration session logged in green flickering Data transmission on serial configuration session LCD display Only LANCOM The LCD display of the LANCOM 8011 VPN shows the following information BOTIVEN in two lines with 16 characters in revolving alternation gt Device name gt Firmware version gt Temperature gt Date and time gt CPU usage gt Memory usage gt Number of VPN channels gt Data transfer downstream gt Data transfer upstream 23 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation 2 3 2 The back of the unit Ports and switches of the router are placed on the front and back 0O The following ports can be found on the front side Four 10 100Base Tx ports for local networks WAN port ISDN S port Serial configuration interface Reset switch The following ports can be found on the back Voltage Switch Port for power cable The reset switch has two different functions depending
2. switch off No network device connected green constantly on Connection to network device no data traffic green flickering Data traffic red flickering Collision of packets WAN link Connection status of the WAN connection off Not connected green blinking Establishing first connection green flashing Protocol negotiations green constantly on Connection established WAN data Data traffic via the WAN connection off No network device connected green constantly on Connection established green flickering Data traffic send or receive red flickering Collision of packets ISDN status Connection status of ISDN Sg connection off Not connected or no Sp voltage no error message green blinking Initializing D channel establishing contact with the connec tion point green constantly on D channel ready for use red flickering D channel error red constantly on Activation of D channel failed If the ISDN status LED goes out automatically this does not indicate an Sg bus error Many ISDN connections and PBXs put the S bus into a power save mode after a certain time The S bus is automatically 22 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation reactivated as required and the ISDN status LED will once again light up green ISDN Chan 1 Data traffic on the ISDN B channels separate per B channel with LANCOM ISDN Chan 2 7111 VPN for both ISDN B channels with LANCOM 8011 VPN
3. o jun a jw n 10 2 4 Configuration interface Outband 8 pin mini DIN socket CTS RTS RxD RI TxD DSR DCD DTR Sc o IN o In A U N GND 10 3 CE declaration of conformity The CE declarations of conformity for LANCOM routers are available for down load on the LANCOM web site www lancom de 73 LANCOM 7111 VPN LANCOM 8011 VPN gt Index Index Numerics 10 100Base TX 3 DES A Accounting AES Autosensing B Bandwidth limiting bandwidth management Basic configuration Blowfish C Callback Callback function Calling Line Identity CLI CAPI interface CAST charge lock Common ISDN Application Programming Interface CAPI Configuration access Configuration file Configuration interface Configuration password Configuration port Configuration protection Connect charge information Connect charge protection Connect charge budget Connect charge metering Contact assignment Configuration interface DSL interface Ethernet interface ISDN So interface 74 24 42 50 30 42 50 25 17 17 28 42 50 15 17 42 50 51 57 42 50 21 57 32 36 66 17 65 24 16 30 37 31 32 37 30 30 72 73 72 73 72 LAN interface Outband WAN interface CPU usage D Date Declaration of conformity Default gateway Denial of Service Protecion Device name DHCP DHCP server Dialing prefix Dial up access Dial up adapter DiffServ DNS acce
4. For the WAN connection it may be necessary to enter the transfer protocol being used The wizard will e g automatically enter the correct settings for major DSL providers You only need to enter the protocol used by your access provider if the wizard does not list your provider Settings for the ISDN connection Set up the basic configuration of your ISDN connection if required You will need the following data gt One or more ISDN MSNs on which the router will accept calls MSNs are ISDN subscriber numbers that are assigned to you by your telephone pro vider They are normally entered without an area code These numbers are only relevant for the router functions LAN to LAN coupling RAS not for remote configuration and LANCOM VPN Option gt A dialing prefix for access to the public telephone network This is nor mally required only when using an ISDN PBX 0 is the usual prefix It is used for all outgoing calls gt Finally you should know whether your telephone provider transmits an ISDN connect charge pulse This signal can be used by the LANCOM router for connect charge budgets and the accounting function 3 1 5 3 2 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration Connect charge protection Connect charge protection blocks connections that go beyond a previously set amount protecting you from unexpectedly high connection costs In a LANCOM router there are three independent budgets For D
5. gt gt Due to the Fast Ethernet uplink LANCOM devices are ideal partners for all connection variants Integrated LANCOM High Security Firewall With 100 up to 1000 VPN channels the LANCOM router series offers enough capacity for high bandwidth couplings LANCOM 8011 VPN with hardware accelerator With the IPSec extension LANCOM dynamic VPN it is possible to connect branch offices with dynamic IP addresses standard broadband connec tion at any time even if the receiving station is not online DMZ ports and separate internet address ranges without NAT support the operation of your own web servers The IP quality of service functions provide dynamic bandwidth manage ment in particular for Voice over IP telephone systems for critical appli cations or for certain user groups Due to its N N IP address mapping also existing networks can be inte grated seamlessly into VPNs The provided management tools LANcontig and LANmonitor support a complete real time monitoring apart from comfortable remote mainte nance of the branch offices Further highlights are the extensive Firewall features for example the Stateful Inspection Intrusion Detection and protection from Denial of Service attacks Regular free software updates of the LANCOM operating system LCOS are available at any time Security settings For a carefree use of your device we recommend to carry out all security set tings e g Firewall encryption access pr
6. 1 1 Which use does VPN offer 1 2 Firewall 1 3 What does a router do 1 3 1 Bridgehead to the WAN 1 3 2 Areas of deployment for routers 1 4 What can your LANCOM router do 2 Installation 2 1 Package contents 2 2 System preconditions 2 3 Introducing LANCOM router 2 3 1 Status displays 2 3 2 The back of the unit 2 4 Hardware installation 2 5 Software installation 2 5 1 Starting LANCOM setup 2 5 2 Which software should you install 3 Basic configuration 3 1 Which information is necessary 3 1 1 TCP IP settings 3 1 2 Configuration protection 3 1 3 Settings for the DSL connection 3 1 4 Settings for the ISDN connection 3 1 5 Connect charge protection 3 2 Instructions for LANconfig 3 3 Instructions for WEBcontig 3 4 TCP IP settings to workstation PCs 4 Setting up Internet access 4 1 Instructions for LANconfig 4 2 Instructions for WEBcontig 12 13 14 14 15 18 18 19 19 24 24 26 26 27 28 28 28 30 30 30 31 31 33 37 39 41 41 LANCOM 7111 VPN LANCOM 8011 VPN gt Contents 5 Linking two networks 42 5 1 What information is necessary 43 5 1 1 General information 43 5 1 2 Settings for the TCP IP router 45 5 1 3 Settings for the IPX router 46 5 1 4 Settings for NetBIOS routing 47 5 2 Instructions for LANconfig 48 5 3 Instructions for WEBconfig 48 6 Providing dial up access 50 6 1 Which information is required 50 6 1 1 General information 51 6 1 2 Settings for TCP
7. Chapter 1 Introduction Quality of Service Dynamic bandwidth management IP Traffic Shaping Bandwidth limiting with absolute or per connection transfer limits separated from send or receive site TOS or DiffServ priority queuing Automatic packet size adaption incl PMTU adjustment or fragmenta tion Bye Bc e Configuration Configuration with LANconfig or with web browser additionally termi nal mode for Telnet or other terminal programs SNMP interface and TFTP server function Remote configuration via ISDN with ISDN PPP connections e g via Windows network and dial up connections Serial configuration interface Callback function with PPP authentication mechanisms for restriction to fixed ISDN telephone numbers FirmSafe with firmware versions for absolutely secure software upgrades Pe ee Oy SAISIS ell S Optional software extensions LANCOM Service Option S LANCOM VPN Option with 500 or 1000 tunnel 17 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation 18 2 2 1 2 2 Installation This chapter will assist you to quickly install hardware and software First check the package contents and system requirements The device can be installed and configured quickly and easily if all prerequisites are fulfilled Package contents Please check the package contents for completeness before starting the installation I
8. If you select My provider is not listed here you must enter the transfer protocol used by your DSL provider manually in the next window Confirm your choice with Apply Entering the password in the web browser 21x E When you are prompted for a user name and password lt 8 by your web browser when accessing the device in the future enter your personal values to the corresponding fields Please note that the password is case sensitive If you are using the common configuration account enter the corresponding password only Leave the user name field blank 36 011920600156 User name g X Password Entering the configuration password 3 4 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration Connect charge protection can limit the cost of DSL and ISDN connections to a predetermined amount if desired Confirm your choice with Apply If your devices does not feature an ISDN port you may now close the setup wizard Otherwise the wizard will prompt you to configure the ISDN port now Make your choice and confirm it with Apply Enter the ISDN subscriber numbers as MSNs i e without area code on which the router will accept calls Multiple numbers are separated by semicolons If you do not specify any MSNs the router will answer all incoming calls on the ISDN connection In addition you can enter a trunk code for dialling into ISDN Finally you should specify whether or not the tariff
9. client mode In this second operating mode the device itself can obtain an IP address from a DHCP server already existing in the LAN Network without DHCP server In a network without DHCP server unconfigured LANCOM devices activate their own DHCP server service after starting and assign appropriate IP addresses and gateway information to the other workstations within the LAN provided that the workstations are set to obtain their IP address automatically auto DHCP In this constellation the device can be accessed with any web browser from each PC with activated auto DHCP function through the name LANCOM or by its IP address 172 23 56 254 lox File Edit View Favorites Tools Help sat eal SEA Gees Ad dress E http ancom File Edit View Favorites Tools Help Back gt O A A Bsearch G Favorites Address http 172 23 56 254 BEE ANcom S28 If the configuration PC does not obtain its IP address from the LANCOM DHCP server figure out the current IP address of this PC with Start gt Execute gt cmd and command ipconfig at the prompt under Windows 2000 or Windows XP with Start gt Execute gt cmd and the command winipcfg at the prompt under Windows Me and Windows 9x or with the command ifconfig on the console under Linux In this case the LANCOM is reachable under the IP 33 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration 34 wou address x x x 254
10. 930C 932C 935C Status Ready I Print to file Preferences Location Comment Find Printer Click on OK A wizard appears that will guide you through the remaining sending process Send a fax with the MS Windows fax service Open the window Printers and Faxes from the control panel Double click with the left mouse button the icon of the fax device LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 7 Sending faxes with LANCAPI The fax client console will open Select the menu item Send a Fax A wiz ard will assist you through the remaining sending process Properties Enter the name and number of the person you want to send the fax to or click Address Book to select a fax recipient 61 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 8 Security settings 8 8 1 62 Security settings Your LANCOM router has numerous security functions You find in this chapter all information you need for an optimal protection The security settings wizard Access to the configuration of a device permits not only to read out critical information such as WEP key or Internet password Rather also the entire set tings of the security functions e g firewall can be altered then So an unau thorized configuration access endangers not only a single device but the entire network Your LANCOM router has a password protection for the configuration access This
11. Increase the limit that has been reached limit gt Completely deactivate the lock that has been triggered set limit to 0 If a time or connect charge limit has been reached you will be notified in LANmonitor To reset the connect charge protection select Reset Charge and Time Limits in the context menu right mouse click You can configure the connect charge settings in LANconfig under Management gt Costs you will only be able to access this configuration if Complete con figuration display is selected under View gt Options You will find the connect charge protection reset in WEBconfig and all parameters under Expert Configuration gt Setup gt Charges module vPN VPN connection status off No VPN channel established green blinking Connection established green flashing First connection green inverse flashing Further connections green constantly on VPN channel is established Security Status of the Firewall Shows the state of security settings and blocked attacks on the secured network green constantly on Security settings are okay Rules for filtering packets are established red blinking Insecure configuration green red flickering Security alarm filtering packets with Firewall rules 21 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation ETH 1 to ETH4 Connection status and data traffic of the four LAN ports with integrated
12. address 10 10 2 100 and on of its IP stations e g 10 10 2 13 accesses the IP station 10 10 1 2 of the branch office then the branch office s IP stations deems to be a accessed by 10 10 2 100 The true IP address of the accessor 10 10 2 13 is hidden If two LANs shall be coupled in Extranet mode please ensure to enter the outbound Extranet IP address of the remote site not its Intranet address According to the example this was 10 10 2 100 The appropriate netmask for the Extranet IP address would be 255 255 255 255 then Settings for the IPX router i The coupling of IPX networks via VPN cannot be configured using the wizard It can only be set up in the expert configuration For details please see the reference manual Coupling two typical IPX networks to form a WAN requires three IPX network numbers LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks for the LAN of the head office gt for the LAN of the branch office gt for the higher level WAN The IPX network numbers in the head and branch offices are specified to the respective remote sides IPX internal net A 00020002 WAN IPX network no 00000009 Q VPN or ISDN S connection T 0123 123456 T 0789 654321 LAN of the head office LAN of the branch office IPX network no 00000001 IPX network no 00000002 Binding Ethernet_Il Binding Ethernet_ll The three required network numbers are
13. information LANCAPI LANCOM setup LANconfig run setup wizards LANmonitor LANtools System preconditions LCD display LEDs see status displays Line management M MAC address filter Memory usage Minimum bandwidth 14 15 30 16 27 14 37 51 32 18 51 40 40 18 42 43 27 26 31 41 27 19 23 19 15 16 23 13 75 LANCOM 7111 VPN LANCOM 8011 VPN gt Index MSN N NAT see IP masquerading NetB NetB 10S IOS proxy Netmask Network segment 25 Number of VPN channels P Package contents packet size adaption Password 30 32 42 PAT see IP masquerading Ping Plain Plain Ethernet IP PMTU PPP PPP client PPPo PPTP E Preshared Key Shared Secret priority queuing Q Quality of Service Quality of Service R Remote Access Service RAS 76 Configuring the dial in computer Enable software compression Function IPX NetBIOS Searching for Windows workgroups Security aspects Server setup 51 47 16 29 47 23 18 17 49 39 39 17 50 54 39 39 45 17 17 13 54 54 15 52 53 53 50 50 specify MSN TCP IP User name Remote configuration Remote configuration access Remote configuration via ISDN Reset connect charge protection Reset switch Resetting the configuration Restarting the device Router S Searching for Windows workgroups Security Firewall wizard Security settings wizard S
14. information is to be transmitted at your ISDN connection Confirm your entries with Apply The basic setup wizard reports that all the necessary information has been provided You can end the wizard with Go on TCP IP settings to workstation PCs The correct addressing of all devices within a LAN is extremely important for TCP IP networks In addition all computers must know the IP addresses of two central points in the LAN gt Default gateway receives all packets that are not addressed to comput ers within the local network gt DNS server translates network names www lancom de or names of computers www lancom de to actual IP addresses The LANCOM router can perform the functions of both a default gateway and a DNS server In addition as a DHCP server it can also automatically assign valid IP addresses to all of the computers in the LAN The correct TCP IP configuration of the PCs in the LAN depends on the method used to assign IP addresses within the LAN gt IP address assignment via the LANCOM router default In this operating mode the LANCOM router not only assigns IP addresses to the PCs in the LAN it also uses DHCP to specify its own IP address as that of the default gateway and DNS server The PCs must therefore be configured so that they automatically obtain their own IP address and the IP addresses of the standard gateway and DNS server via DHCP 37 LANCOM 7111 VPN LANCOM 8011 VPN gt Cha
15. protection is already activated during the basic configuration by entering a password The device locks access to its configuration for a specified period of time after a certain number of failed log in attempts Both the number of failed attempts and the duration of the lock can be set as needed By default access is locked for a period of five minutes after the fifth failed log in attempt Wizard for LANconfig Mark your LANCOM router in the selection window Select from the com mand bar Extras gt Setup Wizard Sj Setup Wizard for LANCOM 1811 Wireless DSL xj Setup Wizard for LANCOM 1811 Wireless DSL This wizard lets you configure your device for specific applications quickly and easily What do you want to do Set up Intemet access X Provide remote access RAS also VPN A Connect two local area networks also VPN J Configure firewall A Configure Dynamic DNS Select in the selection menu the setup wizard Control Security Settings and confirm your choice with Next Enter your password in the following windows and select the allowed pro tocols for the configuration access from local and remote networks Addi tionally enter the MSN for remote configuration via ISDN 8 1 2 8 2 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 8 Security settings In a next step parameters of the configuration lock like number of failed log in attempts and the duration of the lock can be adjusted N
16. range of security mechanisms that can provide an outstanding level of protection gt VPN Network couplings via VPN transmit data by IPSec The data are encrypted by AES 3 DES Blowfish or CAST encryption algorithms gt ISDN For network couplings via ISDN the connection password the checking of the ISDN number and the callback function ensure the secu rity of the connection LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks The ISDN call back function cannot be configured using the wizard It can only be set up in the expert configuration For details please see the reference manual 5 1 What information is necessary The wizard will prompt you for the necessary information on a step by step basis If possible however you should have it available before launching the wizard To explain the significance of the information requested by the wizard we will be using a typical deployment as an example setting up a link between a branch office and its headquarters The routers involved are named HEAD_OFFICE and BRANCH Please refer to the following tables for the entries to be made for each of the routers Arrows mark the dependencies between the entries 5 1 1 General information The following details are required for the installation of LAN to LAN couplings The first column indicates whether the information is required for VPN and or ISDN network couplings VPN ISDN connection availab
17. the TCP IP receive window size of the Windows operating system that is set to a value too small for asynchronous connec tions Instructions on how to increase the Windows size can be found in the Knowl edge Base of the support section of the LANCOM web site www lancom de Unwanted connections under Windows XP Windows XP computers attempt to compare their clocks with a timeserver on the Internet at start up This is why when a Windows XP in the WLAN is started a connection to the Internet is established by the LANCOM To resolve this issue you can turn off the automatic time synchronization on the Windows XP computers under Right mouse click on the time of day gt Properties gt Internet time Cable testing A cabling defect might have occurred if no data is transmitted over LAN or WAN connection although the configuration of the devices does not show any discernible errors You can test the cabling with the built in cable tester of your LANCOM Change under WEBconfig to menu item Expert configuration gt Status gt LAN statistics gt Cable test Enter here the name of the interface to be LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 9 Troubleshooting tested e g DSL1 or LAN 1 Pay attention to the correct spelling of the interfaces Start the test for the specified interface by clicking on Execute Expert Configuration amp Status amp LAN statistics Cable Test Enter here any additional argumen
18. to the following models of the LANCOM router series gt LANCOM 7111 VPN gt LANCOM 8011 VPN The sections of the documentation that refer only to a range of models are marked either in the corresponding text itself or with appropriate comments placed beside the text LANCOM 7111 VPN LANCOM 8011 VPN gt Preface In the other parts of the documentation all described models have been clas sified under the general term LANCOM router This documentation was compiled by several members of our staff from a variety of departments in order to ensure you the best possible support when using your LANCOM product In case you encounter any errors or just want to issue critics or enhance ments please do not hesitate to send an email directly to info lancom de Our online services www lancom de are available to you around the clock should you have any queries regarding the topics discussed in this manual or require any further support In addition support from LANCOM Systems is also available to you Telephone numbers and contact information for LANCOM Systems support can be found ona separate insert or at the LANCOM Systems website Very important instructions If not followed damage may result Important instruction that should be followed Additional instructions which can be helpful but are not required 9 LANCOM 7111 VPN LANCOM 8011 VPN gt Contents Contents 1 Introduction
19. your LANCOM router in the selection window Select from the com mand bar Extras gt Setup Wizard Setup Wizard for LANCOM 1811 Wireless DSL x Setup Wizard for LANCOM 1811 Wireless DSL This wizard lets you configure your device for specific applications quickly and easily What do you want to do 4 Check security settings 4 Set up Intemet access A Provide remote access RAS also VPN AX Connect two local area networks also VPN X Configure Dynamic DNS Select in the selection menu the setup wizard Configuring Firewall and confirm your choice with Next In the following windows select the services protocols the rule should be related to Then you define the source and destination stations for this rule and what actions will be executed when the rule will apply to a data packet You finally give a name to the new rule activate it and define whether further rules should be observed when the rule will apply to a data packet The wizard will inform you as soon as the entries are complete Complete the configuration with Finish Configuration under WEBconfig Under WEBconfig it is possible to check and modify all parameters related to the protection of the Internet access under Configuration gt Firewall QoS gt Rules gt Rule Table The security checklist The following checklist provides a comprehensive overview of all security set tings for professionals Most of the point
20. 111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction RAS server via VPN 100 tunnel 200 tunnel optional 500 or 1000 RAS server via ISDN P JY IP router IPX router via ISDN e g for coupling of Novell networks or dialling into Novell networks NetBIOS proxy for coupling of Microsoft peer to peer networks via ISDN DHCP and DNS server for LAN and WAN N N mapping for routing networks using the same IP address ranges via VPN LANCAPI server for the operating with office applications as fax or answering machine via ISDN interface ISDN leased lines NIN ENN EN EN IN SISISISINSINSIS WAN connection Fast Ethernet S ISDN S for establishing Danymic VPN connections to remote sites with dynamic IP addresses S S LAN connection 4 individual Fast Ethernet LAN ports switchable separately e g as LAN switch or separate DMZ ports auto crossover S S Security functions IP masquerading NAT PAT to hide all workstations of the LAN behind one common public IP address Stateful Inspection Firewall with Intrusion Detection and DoS Protec tion Firewall filters for a selective locking of IP addresses protocols and ports MAC address filter control e g the access of LAN workstations to IP routing functions Be Se NS SISISNSINIS Configuration protection to block brute force attacks 16 LANCOM 7111 VPN LANCOM 8011 VPN gt
21. 55022 EN 55024 EN 60950 Package contents CD incl firmware and tools LANconfig LANmonitor LANCAPI printed manual Eng lish German power adapter cable for outband interface ISDN connection cable 2 Ethernet cable WAN LAN Service Warranty 3 years Support Via hotline and Internet Options 61401 Service option advanced replace ment 4 years warranty 110288 LANCOM Modem Adapter Kit for connecting modems analogue or GSM to the serial configuration interface 61401 Service option advanced replace ment 4 years warranty 61402 LANCOM VPN option 500 chan nels 61403 LANCOM VPN option 1000 chan nels 110288 LANCOM Modem Adapter Kit for connecting modems analogue or GSM to the serial configuration interface 71 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 10 Appendix 10 2 Contact assignment 10 2 1 DSL interface 6 pin RJ45 socket o Jn A U N 10 2 2 ISDN Sp interface 8 pin RJ45 socket corresponding to ISO 8877 EN 60603 7 2 IIT 12345678 3 T 2a 4 R 1a 5 R 1b 6 T 2b 72 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 10 Appendix 10 2 3 Ethernet interfaces 10 100Base T 8 pin RJ45 socket corresponding to ISO 8877 EN 60603 7 F
22. Bconfig Start your web browser e g Internet Explorer Netscape Navigator Opera and call the LANCOM router there http lt IP address of the LANCOM gt or with a name as discribed above LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration If you cannot access an unconfigured LANCOM router the problem may be due to the netmask of the LAN with less than 254 possible hosts netmask gt 255 255 255 0 please ensure that the IP address X X X 254 is located in your own subnet The WEBconfig main menu will be displayed Setup Wizards Wizards enable you to handle frequent configuration jobs easily and quickly amp Basic Settings G Security Settings G Setup Internet Access amp Selection of Internet Provider Q Setup a RAS Account Q Connect Two Local Area Networks Device Configuration and Status These menu options enable you to access the device s entire configuration Si Expert Configuration qa Save Configuration van Load Configuration Firmware Handling F Perform a Firmware Upload Extras Q Show Search Other Devices Q Get Device SNMP MIB The setup wizards are tailored precisely to the functionality of the spe cific LANCOM router As a result your device may offer different wiz ards than those shown here If you have chosen automatic TCP IP configuration please continue with Step If you would like to configure the TCP IP settings manually assign an available
23. IP 52 6 1 3 Settings for IPX 52 6 1 4 Settings for NetBIOS routing 53 6 2 Settings for the dial in computer 54 6 2 1 Dial up via VPN 54 6 2 2 Dial up via ISDN 54 6 3 Instructions for LANconfig 55 6 4 Instructions for WEBconfig 55 7 Sending faxes with LANCAPI 57 7 1 Installation of the LANCOM CAPI fax modem 58 7 2 Installation of the MS Windows fax service 59 7 3 Sending a fax 60 7 3 1 Send a fax with any given office application 60 7 3 2 Send a fax with the MS Windows fax service 60 8 Security settings 62 8 1 The security settings wizard 62 8 1 1 Wizard for LANconfig 62 8 1 2 Wizard for WEBconfig 63 8 2 The firewall wizard 63 8 2 1 Wizard for LANconfig 63 8 2 2 Configuration under WEBconfig 64 8 3 The security checklist 64 LANCOM 7111 VPN LANCOM 8011 VPN gt Contents 9 Troubleshooting 9 1 No WAN connection is established 9 2 DSL data transfer is slow 9 3 Unwanted connections under Windows XP 9 4 Cable testing 10 Appendix 10 1 Performance data and specifications 10 2 Contact assignment 10 2 1 DSL interface 10 2 2 ISDN So interface 10 2 3 Ethernet interfaces 10 100Base T 10 2 4 Configuration interface Outband 10 3 CE declaration of conformity 11 Index 67 67 67 68 68 70 70 72 72 72 73 73 73 74 1 1 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction Introduction The models of the LANCOM router series operate as powerful Dynamic VPN gateways with 200 500 o
24. ISDN control channel D channel 51 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 6 Providing dial up access 52 6 1 2 Settings for TCP IP Each active RAS user must be assigned an IP address when using the TCP IP protocol LAN of the head office IP 10 0 1 0 Remote workstation IP L 10 0 1 101 VPN or ISDN SS connection TETTETETT ISDN adapter User SAMPLE T 0123 123456 T 0123 777888 This IP address can be permanently assigned when setting up a user However it is simpler to let the LANCOM router automatically assign free IP addresses to users when they dial in In this case you only need to specify the IP address range that the LANCOM router should use for RAS users During both manual and automatic IP address assignment please ensure that only free addresses from the address range of your local network are used In our example the IP address 10 0 1 101 will be assigned to the PC when con necting This IP address makes the computer a fully fledged member of the LAN with the appropriate rights it can access all of the other devices in the LAN The same applies in the other direction as well computers in the LAN will also be able to access the remote machine Settings for IPX Two IPX network numbers must be provided for remote access to an IPX net work the IPX network number of the head office gt an additional IPX network number for the higher level WAN LANCOM 7111 VPN LA
25. LANCOM 7111 VPN LANCOM 8011 VPN 2004 LANCOM Systems GmbH Wuerselen Germany All rights reserved While the information in this manual has been compiled with great care it may not be deemed an assurance of product characteristics LANCOM Systems shall be liable only to the degree specified in the terms of sale and delivery The reproduction and distribution of the documentation and software included with this product is subject to written per mission by LANCOM Systems We reserve the right to make any alterations that arise as the result of technical develop ment Trademarks Windows Windows XP and Microsoft are registered trademarks of Microsoft Corp The LANCOM Systems logo and the name LANCOM are registered trademarks of LANCOM Systems GmbH All other names mentioned may be trademarks or registered trademarks of their respective owners Subject to change without notice No liability for technical errors or omissions This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit http www openss org LANCOM Systems GmbH Adenauerstr 20 B2 52146 Wuerselen Germany www lancom de Wuerselen December 2004 110297 1204 LANCOM 7111 VPN LANCOM 8011 VPN gt Preface Preface Thank you for placing your trust in this LANCOM Systems product The top models of the LANCOM router series serve as extremely powerful Dynamic VPN gateways for medium sized and large locations gt
26. NCOM 8011 VPN gt Chapter 6 Providing dial up access IPX internal net A 00020002 WAN IPX network no Remote 00000009 workstation VPN or ISDN SS connection ISDN adapter SS am ue User SAMPLE LAN of the head office T 0123 777888 IPX network no 00000001 Binding Ethernet_ll The required network numbers are designated as External Network Num bers Like IP network addresses they apply to an entire LAN segment On the other hand internal IPX numbers are used to address specific Novell servers in the LAN All three specified network numbers must be distinct from one another and from all used internal IPX network numbers In addition it may be necessary to enter the frame type binding Specifying the IPX network number and binding used is not necessary if the remote network also contains a Novell server A network number for the WAN must also be entered manually in this case however Settings for NetBIOS routing All that is required to use NetBIOS is the name of a Windows workgroup from the router s own LAN The connection is not established automatically The RAS user must manually establish a connection to the LANCOM router via Dial Up Networking first When connected they can search for and access computers in the remote network via Find gt Computers not through the Network Neighbourhood 53 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 6 Providing dial up acc
27. SL access you can set a maximum connection time in minutes In addition to this time budget there is also a budget for limiting ISDN connection charges In order for the limitations according to connect charge rates to func tion properly it is necessary to enter the information for connect charge rates through ISDN Any budget can be deactivated by entering the value 0 It is possible to completely turn off connect charge protection Instructions for LANconfig Start up LANconfig by clicking Start gt Programs gt LANCOM gt LANconfig LANconfig automatically detects the new LANCOM router in the TCP IP network Then the setup wizard starts that will help you make the basic settings of the device or will even do all the work for you provided a suit able network environment exists Setup Wizard for LANCOM 1811 Wireless DSL xj Setup Wizard for LANCOM 1811 Wireless DSL z Basic settings Before you can set up your new device some settings for the operation within your network must be defined If you are not yet familiar with networks and this device is the only router in your network then these settings can be defined automatically If the setup wizard does not start automatically start a manual search for new devices on all ports if the LANCOM router is connected via a serial port or in the network Device gt Find If you cannot access an unconfigured LANCOM router the problem may be due to the n
28. SNMP configuration with a password The field for pro tection of the SNMP configuration with a password is also contained in LANconfig in the Management configuration area on the Security tab gt Have you activated the Firewall The Stateful Inspection Firewall of the LANCOM ensures that your local network cannot be attacked from the outside The Firewall can be ena bled in LANcontig under Firewall QoS on the register card General gt Do you make use of a Deny All Firewall strategy For maximum security and control you prevent at first any data transfer through the Firewall Only those connections which are explicitly desired have to allowed by the a dedicated Firewall rule then Thus Trojans and certain Email viruses loose their communication way back The Firewall rules are summarized in LANconfig under Firewall Qos on the register card Rules gt Have you activated the IP masquerading IP masquerading is the hiding place for all local computers for connection to the Internet Only the router module of the unit and its IP address are visible on the Internet The IP address can be fixed or assigned dynami cally by the provider The computers in the LAN then use the router as a gateway so that they themselves cannot be detected The router separates Internet and intranet as if by a wall The use of IP masquerading is set 65 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 8 Se
29. address from a suitable address range to the LANCOM router Also set whether or not it is to operate as a DHCP server Confirm your entry with Apply 35 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration Inthe following Security settings window specify a password for config uration access Note that the password is case sensitive and ensure that it is sufficiently long at least 6 characters You may specify whether the device may only be configured from the local network or whether remote configuration via the WAN i e a remote net work is also permissible Please note that enabling this will also permit remote configuration via the Internet You should always make sure that the configuration access is suitably protected e g with a password Remote configuration via a direct ISDN connection is available independ ently of the WAN remote configuration in this case the configuration PC establishes a direct dial up ISDN connection to the LANCOM router for example using Windows Dial Up Networking ISDN remote configuration can be enabled by specifying an MSN terminal device selection digit for it In this case the LANCOM router will accept calls on that MSN terminal device selection digit and can be remotely configured via the ISDN con nection Confirm your selection with Apply In the next window select your DSL provider from the list that is displayed Confirm your choice with Apply
30. area code on which the router will accept calls Multiple numbers are separated by semicolons If you do not specify any MSNs the router will answer all incoming calls on the ISDN connection In addition you can enter a trunk code for dialling into ISDN Finally you should specify whether or not the tariff information is to be transmitted at your ISDN connection Confirm your choice with Next Connect charge protection can limit the cost of DSL and ISDN connections to a predetermined amount if desired Confirm your choice with Next Complete the configuration with Finish 3 3 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration Section TCP IP settings to workstation PCs on page 37 will describe the settings required for the individual workstations in the LAN Instructions for WEBconfig To configure the router with WEBconfig you must know how to address it in the LAN The reaction of the devices as well as their accessibility for configu ration via web browser is dependent on whether a DHCP server and a DNS server are already active in the LAN and whether these two server processes exchange the assignment of IP addresses to symbolic names within the LAN between each other After powered on unconfigured LANCOM devices check first whether a DHCP server is already active in the LAN Dependent on the situation the device is able to switch on its own DHCP server or alternatively to activate its DHCP
31. as the basis for its communications The fast xDSL connection of the router comes into its own here The precondition a VPN gateway with LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction access to the Internet is required on either side of the network inter connection VPN tunnel via the Internet VPN gateways gt Conventional via ISDN Without VPN a LAN to LAN interconnection can alternatively be real ized via ISDN In this case an intelligent line management and sophisticated filter mechanisms keeps connection costs low gt Remote access to the company network via VPN or ISDN The work of many office workers in modern organizations is less and less dependent on any definite location the most important factor here is unimpaired access to shared and freely available information Remote Access Service RAS is the magic word here Employees working from home or field staff can dial into the company network via VPN or ISDN When working with remote access via ISDN the router protects the company network the call back function only grants access to known and registered users 1 4 What can your LANCOM router do The following table contains a direct comparison of the properties and func tions of your devices with other models Application Internet access v4 PA LAN to LAN coupling via VPN 100 tunnel 200 tunnel optional 500 or 1000 LAN to LAN coupling via ISDN Z WA 15 LANCOM 7
32. avoid problems always configure multiple LANCOM router devices one at a time immediately assigning each device a unique IP address one that does not end with 254 WAN connect the WAN port with the included connector cable dark blue plug e g with the ethernet port of a DSL modem or of a cable modem ISDN to connect the LANCOM router to the ISDN plug one end of the supplied ISDN connector cable light blue plugs in the ISDN S port of the router and the other end into an ISDN S multi device mode or point to point mode connection Configuration port you may optionally connect the router directly to the serial port RS 232 V 24 of a PC Use the cable supplied for this pur pose Connect the configuration port of the LANCOM with a free serial port of the PC Connect to power Connect socket of the unit to a power supply using the included power adapter and switch it on With the LANCOM 7111 VPN only use the included power supply unit Using an unsuitable power supply unit may cause damage or injury Operational After a short device self test the Power LED will be per manently lit Green LAN LEDs indicate the LAN sockets that have function ing connections 25 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation 26 2 5 2 5 1 Example for LANCOM 8011 VPN Configuration PC with serial port Network terminator e g SDSL modem Software installat
33. cial form of the CAPI 2 0 interface that all workstations of the LAN need to get access to office communication functions as fax or EuroFile transfer With LANCAPI Dial Up Networking Support single workstations can realize dial up connections to an Internet provider via LANCAPI The CAPI fax modem makes you available a first class fax driver gt The LANCOM VPN Client enables a setting of VPN connections from a remote workstation via Internet to a router with LANCOM VPN Option gt With LANCOM Online Documentation you can copy the documenta tion files on your PC Select the appropriate software options and confirm your choice with Next The software is automatically installed 27 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration 28 3 3 1 Basic configuration The basic configuration can be performed on a step by step basis using a convenient setup wizard to guide you through the setup process and prompt you for the required information First this chapter will inform you which information is required for the basic configuration Use this section to assemble the information you will need before launching the wizard Next enter the data in the setup wizard Launching the wizard and the proc ess itself are described step by step with separate sections for LANconfig and WEBconfig Thanks to the information that you have collected in advance the basic configuration is quick and effortless At the e
34. curity settings 66 individually for each route in the routing table The routing table can be found in the LANconfig in the IP router configuration section on the Routing tab Have you excluded certain stations from access to the router Access to the internal functions of the devices can be restricted using a special filter list Internal functions in this case are configuration sessions via LANconfig WEBconfig Telnet or TFTP This table is empty by default and so access to the router can therefore be obtained by TCP IP using Tel net or TFTP from computers with any IP address The filter is activated when the first IP address with its associated network mask is entered and from that point on only those IP addresses contained in this initial entry will be permitted to use the internal functions The circle of authorized users can be expanded by inputting further entries The filter entries can describe both individual computers and whole networks The access list can be found in LANconfig in the TCP IP configuration section on the General tab Have you closed critical ports with filters The firewall filters of the LANCOM router devices offer filter functions for individual computers or entire networks Source and target filters can be set for individual ports or for ranges of ports In addition individual pro tocols or any combinations of protocols TCP UDP ICMP can be filtered It is particularly easy to set up t
35. designated as External Network Numbers by the IPX conventions Like IP network addresses the apply to an entire LAN segment On the other hand internal IPX numbers are used to address specific Novell servers in the LAN All three specified network num bers must be distinct from one another and from all used internal IPX network numbers In addition it may be necessary to enter the frame type binding Specifying the IPX network number and binding used is not necessary if the remote network also contains a Novell server It is only necessary to enter the network number for the WAN manually in this case Settings for NetBIOS routing NetBIOS routing can be set up quickly All that is required in addition to the information for the TCP IP protocol used is the name of a Windows workgroup from in the router s own LAN 47 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks si Remote Windows workgroups do not appear in the Windows Network Neighbourhood but can only be contacted directly e g via Find Computers 5 2 Instructions for LANconfig Perform the configuration on both routers one at a time Launch the Connect two local area networks wizard Follow the wizard s instructions and enter the required information Setup Wizard for LANCOM 1811 Wireless DSL Setup Wizard for LANCOM 1811 Wireless DSL This wizard lets you configure your device for specific applications quick
36. dial in computer These are briefly listed here based on a Windows computer Dial Up Networking or another PPP client must be correctly configured Network protocol TCP IP IPX installed and bound to the dial up adapter New connection in Dial Up Networking with the call number of the router Terminal adapter or ISDN card set to PPPHDLC PPP selected as the Dial Up server type Enable software compression and Require data encryption unchecked vvvvvyv LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 6 Providing dial up access gt Select desired network protocols TCP IP IPX gt Additional TCP IP settings gt Assignment of IP address and name server address enabled gt IP header compression disabled These settings will permit a PC to dial into a remote LAN via ISDN and access its resources in the usual manner 6 3 Instructions for LANconfig EZ Launch the Provide Dial In access RAS wizard Follow the wizard s instructions and enter the required information gt Setup Wizard for LANCOM 1811 Wireless DSL Setup Wizard for LANCOM 1811 Wireless DSL This wizard lets you configure your device for specific applications quickly and easily What do you want to do Check security settings A Set up Intemet access x Provide remote access RAS also VPN o local area networks also VPN 44 Configure firewall A Configure Dynamic DNS lt Back Cancel The wizard will return a message
37. dynamic IP addresses transferring of the dynamic IP address via ISDN B or D channel IKE main mode Connection from dynamic to static IP addresses encrypted transferring of the dynamic IP address via ICMP or UDP packet IKE Main Mode Router modes services and IP IPX and NetBIOS IP multi protocol Router HTTP and HTTPS Server WEBconfig interfaces DNS Client DNS Server DNS Relay DNS Proxy DHCP Client DHCP Relay and DHCP Server incl auto detection Dynamic DNS Client NTP Client SNTP Server NetBIOS IP Proxy N N IP address mapping LAN protocols IP ARP Proxy ARP IP ICMP UDP TCP TFTP RIP 1 RIP 2 DHCP DNS SNMP HTTP HTTPS BOOTP NTP SNTP NetBIOS RADIUS LANCAPI IPX RIP SAP IPX and SPX watchdogs NetBIOS watchdogs WAN protocols PPPoE Multi PPPoE PPTP PAC or PNS and Plain Ethernet with and without DHCP WAN protocols ISDN D channel 1TR6 DSS1 Euro ISDN B channel PPP asynchronous synchronous X 75 HDLC ML PPP for channel bundling V 110 GSM HSCSD CAPI 2 0 via LANCAPI Stac data compression leased line support for D64 D64S2 D64SY 70 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 10 Appendix Interfaces WAN 10 100 Mbps Fast Ethernet LAN DMZ Switch 4 ports 10 100 Mbps Fast Ethernet ISDN RJ 45 ISDN SO Bus Serial config 8 pol Mini DIN COM port 9600 11500 baud Management Outband command line interface serial V 24 V 28 port 8 pol mini DIN Inband LANconfig Windows c
38. e LAN and the dial in PC is established over an ISDN dial up connection The router in the LAN requires an ISDN interface the dial up PC an ISDN adapter or an ISDN modem The data transfer protocol is PPP Therefore the support of all usual devices and operating systems is ensured A setup wizard handles the configuration of the dial up connection in the usual convenient manner Security aspects You must of course protect your LAN against unauthorized access An LANCOM router therefore offers a whole range of security mechanisms that can provide an outstanding level of protection gt VPN Network couplings via VPN transmit data by IPSec The data are encrypted by AES 3 DES Blowfish or CAST encryption algorithms gt ISDN For network couplings via ISDN the connection password the checking of the ISDN number and the callback function ensure the secu rity of the connection i The ISDN call back function cannot be configured using the wizard It can only be set up in the expert configuration For details please see the reference manual Which information is required The wizard will set up dial up access for only one user Please run the wizard again for each additional user LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 6 Providing dial up access 6 1 1 General information The following entries are required to set up a RAS connection The first column indicates whether the information is required for a VPN and
39. ected network devices are still unconfigured the setup wizard will suggest fully automatic TCP IP configuration This may be the case in the fol lowing situations gt a single PC is connected to the router gt setup of a new network Fully automatic TCP IP configuration will not be available when integrating the LANCOM router in an existing TCP IP LAN In this case continue with the section Information required for manual TCP IP configuration gt page 29 The result of the fully automatic TCP IP configuration the router will be assigned the IP address 172 23 56 1 netmask 255 255 255 0 In addition the integrated DHCP server will be enabled so that the LANCOM router can automatically assign IP addresses to the devices in the LAN Configure manually nevertheless The fully automatic TCP IP configuration is optional You may also select man ual configuration instead Make your selection after the following considera tions gt Choose automatic configuration if you are not familiar with networks and IP addresses gt Select manual TCP IP configuration if you are familiar with networks and IP addresses and one of the following conditions is applicable gt You have not yet used IP addresses in your network but would like to do so now You would like to specify the IP address for your router selecting it from the address range reserved for private use e g 10 0 0 1 with the netmask 255 255 255 0 At the same time you
40. ecurity checklist Security features Security settings Setting up access to the Internet SNMP Protection of the configuration Software installation Stateful Inspection Stateful Inspection Firewall Status displays DSL Data ISDN Data ISDN Status LAN Online Power Security VPN WAN Data WAN link System preconditions T TCP 32 20 30 52 51 36 30 17 21 24 24 24 13 48 63 62 64 14 67 39 25 12 63 19 22 23 22 22 20 21 21 21 22 22 18 66 TCP IP 19 54 check connection 49 Settings 28 32 35 Settings to PCs in the LAN 37 Windows size 68 TCP IP configuration Automatic 35 fully automatic 28 29 manual 28 29 TCP IP filter 12 16 66 TCP IP router Settings 45 Temperature 23 time 23 TOS 17 Traffic Shaping 17 Transfer protocol 67 LANCOM 7111 VPN LANCOM 8011 VPN gt Index U UDP 66 V Virtual Private Network VPN 14 15 Voltage switch 24 VPN client 54 Ww WAN Connector cable 18 WAN connection 24 problems establishing the connection 67 WEBconfig 33 password 36 Starting the wizards 34 System preconditions 19 Wide Area Network WAN 13 71
41. ess 54 6 2 Settings for the dial in computer 6 2 1 6 2 2 Dial up via VPN For dialing into a network via VPN a workstation requires gt an Internet access gt aVPN client LANCOM Systems offers the LANCOM VPN Client on the LANCOM CD It can be run under Windows 2000 and Windows XP A detailed description of the LANCOM VPN Client and a description of its installation can also be found on the CD For configuring a new profile select the option Configure VPN Remote Access IPSec over PPTP in the LANCOM VPN Client configuration wizard x Provide remote access RAS YPN IPSec over WLAN Should VPN be activated for this connection This wizard will help you to set up a remote access RAS For example an employee can use it to dial into the company network from outside Except for direct ISDN access this remote access will be secured using VPN Virtual Private Network This will ensure that no third party will be able to read your data even when the transmission takes place over the Internet There are different precautions to take depending on the route of remote access Which kind of remote access do you want ci j C VPN connection over Wireless LAN IPSec over WLAN C Direct ISDN connection without using YPN The wizard asks then for the values that have been defined during the instal lation of the RAS access in the LANCOM router Dial up via ISDN A number of settings must be configured on the
42. etmask of the LAN with less than 254 possible 31 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration 32 hosts netmask gt 255 255 255 0 please ensure that the IP address X X X 254 is located in your own subnet If you have chosen automatic TCP IP configuration please continue with Step 4 If you would like to configure the TCP IP settings manually assign an available address from a suitable address range to the LANCOM router Confirm your choice with Next Specify whether or not the router should act as a DHCP server Make your selection and confirm with Next In the following window specify the password for configuration access Note that the password is case sensitive and ensure that it is sufficiently long at least 6 characters In addition you may specify whether the device may only be configured from the local network or whether remote configuration via the WAN i e a remote network is also permissible i Please note that enabling this will also permit remote configuration via the Internet You should always make sure that the configuration access is protected with a password Inthe next window select your DSL provider from the list that is displayed If you select My provider is not listed here you must enter the transfer protocol used by your DSL provider manually Confirm your choice with Next Enter the ISDN subscriber numbers as MSNs i e without
43. etwork with unlim ited access to office communications functions such as fax machines answer ing machines online banking and eurofile transfer All functions are supplied via the network without the necessity of additional hardware at each individ ual workstation thus eliminating the costs of equipping the workstations with ISDN adapters or modems All you need do is install the office communica tions software on the individual workstations PCs with fax software ISDN adapter With LANCAPI by LANCOM it is possible to send faxes comfortably from your workstation PC without having connected a fax device To do so you need to install several components gt the LANCAPI client It provides the connection between your worksta tion PC and the LANCAPI server gt the CAPI fax modem This tool simulates a fax device on your worksta tion PC gt the MS Windows fax service This is the interface between the fax appli cations and the virtual fax The installation of the LANCAPI client is described in the reference manual This chapter shows the installation of LANCOM CAPI fax modem and MS Windows fax service 57 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 7 Sending faxes with LANCAPI 7 41 Installation of the LANCOM CAPI fax modem Select the entry Install LANCOM software in the setup program of your LANCOM CD Highlight the option CAPI fax modem click Next and follow the instruc tions of the installat
44. he ISDN connection is an alternative to the use of the ISDN caller ID It is always used to authenticate callers that do not send an ISDN caller ID The exact same password must be entered on both sides It is used for calls in both directions gt The Shared Secret is the central password for security within the VPN The exact same password has to be entered on both sides gt Data compression increases the transfer speed of the connection at no additional cost This is completely unlike the bundling of two ISDN chan nels with MLPPP Multi Link PPP The transfer rate will be doubled but there will also be additional telephone costs for two connections Settings for the TCP IP router In TCP IP networks addressing has a special significance Please note that two interconnected networks are logically separate from one another Each must therefore have its own network number in our example 10 0 1 x and 10 0 2 x These network numbers may not be identical server head company pc1 branch comany NSE 10 0 2 10 S VPN or ISDN connection 10 0 1 100 T 0123 123456 10 0 2 100 T 0789 654321 LAN of head office IP 10 0 1 0 Netmask 255 255 255 0 Domain head company LAN of branch office IP 10 0 2 0 Netmask 255 255 255 0 Domain branch company Unlike when accessing the Internet all of the IP addresses in the involved net works are visible on the remote side when cou
45. he filters with LANconfig The Rules tab under Firewall QoS can assist you to define and change the filter rules Is your saved LANCOM router configuration stored in a safe place Protect the saved configurations against unauthorized access in a safe place A saved configuration could otherwise be loaded in another device by an unauthorized person enabling for example the use of your Inter net connections at your expense 9 1 9 2 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 9 Troubleshooting Troubleshooting In this chapter you will find suggestions and assistance for a few common dif ficulties No WAN connection is established After start up the router automatically attempts to connect to the access pro vider During this process the Online LED will blink green If successful the LED will switch over to steady green If however the connection can t be established the Online LED will light up red The reason for this is usually one of the following Problems with the cabling Only the cable provided with your device should be used to connect to the WAN This cable must be connected to the Ethernet port of your broadband access device The WAN link LED must light green indicating the physical con nection Has the correct transfer protocol been selected The transfer protocol is set along with the basic settings The basic setup wiz ard will enter the correct settings for numerous DSL providers automat
46. hree ways A subsidiary is connected to the LAN typically using a leased line PCs dial into the central network via modem or ISDN connections Remote Access Service RAS The central LAN has a connection to the Internet so that its users can access the Web and send and receive e mail All connections to the outside world are based on dedicated lines i e switched or leased lines Dedicated lines are very reliable and secure On the other hand they involve high costs In general the costs for dedicated lines are dependent on the distance Especially in the case of long distance con nections keeping an eye out of cost effective alternatives can be worthwhile The appropriate hardware must be available in the headquarters for every type of required connection analog dial up ISDN leased lines In addition LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction to the original investment costs ongoing costs are also incurred for the administration and maintenance of this equipment Networking via the Internet The following structure results when using the Internet instead of direct con nections Head Office Workstation in remote Subsidi gt access ary All participants have fixed or dial up connections to the Internet Expensive dedicated lines are no longer needed All that is required is the Internet connection of the LAN in the headquar ters Special switching de
47. ht forward to Hardware installa tion page 24 Status displays The front panel of the unit feature a series of light emitting diodes LEDs that provide information on the status of the device On the LANCOM 8011 VPN a two lined display additionally shows information on the status Front side The various LANCOM router models have different numbers of indicators on the front panel depending on their functionality 60000 LANCON 80M VPN m AGEN I I I Meanings of the LEDs In the following sections we will use different terms to describe the behaviour of the LEDs gt Blinking means that the LED is switched on or off at regular intervals in the respective indicated colour 19 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation Power 1 Online 20 gt Flashing means that the LED lights up very briefly in the respective col our and stay then clearly longer approximately 10x longer switched off gt Inverse flashing means the opposite The LED lights permanently in the respective colour and is only briefly interrupted gt Flickering means that the LED is switched on and off in irregular inter vals This LED indicates that the device is operational After the device has been switched on it will flash green for the duration of the self test After the self test either an error is output by a flashing red light code or the device starts and the LED remains lit gree
48. ically Only if your DSL provider is not listed you will have to enter manually the pro tocol being used In any case the protocol that your DSL provider supplies you with should definitely work You can monitor and correct the protocol settings under LANconfig Management Interfaces Interface settings WAN Inter face WEBconfig Expert Configuration gt Setup Interfaces gt WAN Interface DSL data transfer is slow The data transfer rate of an broadband Internet DSL connection is dependent upon numerous factors most of which are outside of one s own sphere of influence Important factors aside from the bandwidth of one s own Internet connection are the Internet connection and current load of the desired target 67 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 9 Troubleshooting 68 9 3 9 4 Numerous other factors involving the Internet itself can also influence the transfer rate Increasing the TCP IP window size under Windows If the actual transfer rate of a DSL connection is significantly below the fastest rate listed by the provider there are only a few possible causes apart from the above mentioned external factors which may involve one s own equipment One common problem occurs when large amounts of data are sent and received simultaneously with a Windows PC using an asynchronous connec tion This can cause a severe decrease in download speed The cause of this problem is what is known as
49. ion This section covers the installation of the included system software LANtools for Windows You may skip this section if you use your LANCOM router exclusively with computers running operating systems other than Windows Starting LANCOM setup Place the LANCOM CD in your CD drive The LANCOM setup program will start automatically If the setup program does not start automatically run AUTORUN EXE in the root folder of the LANCOM CD LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation In Setup select Install LANCOM Software The following selection menus will appear on the screen LANCOM Software Setup x Software Components Specify which software components you want to be installed during setup Place a checkmark beside each software component you want to install or remove the checkmark to exclude it from installation a LANcontig L4Nmonitor g LANCAPI EF LANCAPI Dial Up Networking Support g5 CAPI Faxmodem 89 LANCOM Advanced VPN Client gt K Enables you to configure your LANCOM device in ease from your computer lt Back Cancel 2 5 2 Which software should you install gt LANconfig is the configuration program for all LANCOM routers and Wireless LAN access points WEBconfig can be used alternatively or in addition via a web browser gt LANmonitor lets you monitor on a Windows PC all LANCOM routers and Wireless LAN access points gt LANCAPI is a spe
50. ion routine LANCOM Software Setup Software Components Specify which software components you want to be installed during setup Place a checkmark beside each software component you want to install or remove the checkmark to exclude it from installation R LANconfig JA LANmonitor Cg LANCAPI EF LANCAPI Dial Up Networking Support CAPI Faxmodem 1 5 LANCOM Advanced VPN Client Installs a virtual modem on your system that you can use to transfer data and send faxes lt Back Cancel 58 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 7 Sending faxes with LANCAPI When the installation was successful the LANCOM CAPI fax modem is entered into the Phone and Modem Options of the control panel File Edit View Favorites Tools Help Qa be B JO Search gt Folders E NE control Panel 6 Dialing Rules Modems Advanced w 2 amp o Administrative Date and Time Display Folder Options Tools ools API Fr 8 B gt The folowing modems are installed Keyboard LANCOM Mouse Network LANCAPI Connections LANCOM CAPI Faxmodem COM5 lt P Modem of Xircom CreditCard Ethemet 100 COM3 es 6 Regional and Scanners and Scheduled Sounds and Language Cameras Tasks Audio Devices a wv User Accounts Wireless Link Add Remove Properties 7 2 Installation of the MS Windows fax service Select the option P
51. izard Setup Wizard for LANCOM 1811 Wireless DSL xj Setup Wizard for LANCOM 1811 Wireless DSL This wizard lets you configure your device for specific applications quickly and easily What do you want to do A Check security settings X Provide remote access RAS also VPN 44 Connect two local area networks also VPN X Configure firewall X Configure Dynamic DNS From the menu select the Setup Internet access wizard and click Next In the following window select your country and your Internet provider if possible and enter your access information Depending on their availability the wizard will display additional options for your Internet connection The wizard will inform you as soon as the entered information is complete Complete the configuration with Finish File Edit Device View Tools Help lal slale sla alx Nal aala I LANconfig Name Setup wizard scription Branch_offices SP NHAMEL_HOME B Branch Office E Clentoz S Central Office E Internal Instructions for WEBconfig wo In the main menu select Setup Internet access In the following window select your country and your Internet provider if possible and enter your access information Depending on their availability the wizard will display additional options for your Internet connection The wizard will inform you as soon as the entered information is complete Complete the configu
52. le yes no yes no VPN Type of the local IP address static dynamic static dynamic VPN Type of the remote IP address static dynamic p lt static dynamic VPN ISDN Name of the local device HEAD BRANCH VPN ISDN Name of the remote station BRANCH x lt HEAD VPN ISDN Remote ISDN calling number 0123 123456 0789 654321 VPN ISDN Remote ISDN caller ID 0789 654321 pa 0123 123456 VPN ISDN Password for secure transmission of the IP Password lt gt Password address VPN Shared secret for encryption Secret gt Secret VPN IP address of remote station 10 0 2 100 10 0 1 100 VPN IP network address of the remote network 10 0 2 0 10 0 1 0 43 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks VPN Netmask of the remote network 255 255 255 0 255 255 255 0 VPN Domain name of the remote network head branch VPN Hide local stations for access to remote net yes no yes no work Extranet VPN ISDN TCP IP routing for access to remote network yes no yes no ISDN IPX routing for access to remote network yes no yes no VPN ISDN NetBIOS routing for access to remote net yes no yes no work VPN ISDN Name of remote workgroup NetBIOS only workgroup1 workgroup2 ISDN Data compression on off gt on off ISDN Channel bundling on off lt gt on off gt Incase yo
53. ly and easily What do you want to do A Check security settings A Set up Intenet access A Provide remote access RAS also VPN Connect two local area networks also VPN X Configure firewall x Configure Dynamic DNS The wizard will return a message to indicate that it has all the information it needs Close the wizard with Finish After finishing the configuration of both routers you can test the network connection Try to contact a computer in the remote LAN e g with a ping The LANCOM router should automatically set up a connection to the remote station and contact the required computer 5 3 Instructions for WEBconfig i Under WEBconfig the coupling of networks via VPN cannot be con figured using the wizard It can only be set up in the expert configu ration For details please see the reference manual Perform the configuration on both routers one at a time 48 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks C From the main menu launch the Connect two local area networks wiz ard Follow the wizard s instructions and enter the required information The wizard will return a message to indicate that it has all the information it needs Close the wizard with Terminate After finishing the configuration of both routers you can test the network connection Try to contact a computer in the remote LAN e g with a ping The LANCOM router should automatically
54. n off Device off green blinking Self test when powering up green constantly on Device ready for use red blinking alternately Device insecure configuration password not assigned green red blinking Time or connect charge reached The power LED flashes red green in alternation until a configuration password has been specified Without a configuration password the configuration data of the LANCOM is insecure Under normal circum stances you would assign a configuration password during the basic configuration see tion about a later instructions in the following chapter For informa assignment of the configuration password see the section Security settings page 62 The Online LED indicates the overall status of all WAN ports off No active connection green flashing Establishing first connection green inverse flashing Establishing further connection green constantly on At least one connection established red constantly on Error establishing the previous connection LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation Flashing Power LED but no connection There s no need to worry if the Power LED blinks red and you can no longer connect to the WAN This simply indicates that a preset time or connect charge limit has been reached There are three methods available for unlocking i Signal for reached time gt Reset connect charge protection or connect charge gt
55. n addition to the device itself the package should contain the following accessories Cable for integrated power supply LAN connector cable green plugs WAN connector cable dark blue plugs ISDN connector cable light blue plugs rubber base 19 mounting kit LANCOM CD Printed installation guide WINN TN IN IS TSS Pym FS e Os Printed user manual Printed reference manual S S If anything is missing please contact your retailer or the address stated on the delivery slip of the unit System preconditions Computers that connect to a LANCOM router must meet the following mini mum requirements 2 3 LANCOM 8011 VPN LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation gt Operating system that supports TCP IP e g Windows XP Windows Mil lennium Edition Me Windows 2000 Windows 98 Windows 95 Win dows NT Linux BSD Unix Apple Mac OS OS 2 BeOS Access to the LAN via the TCP IP protocol The LANtools and the LANCAPI functions also require a Windows operating system A web browser is required for access to WEBconfig Introducing LANCOM router This section introduces your device We will give you an overview of all status displays connections and switches While the information in this section is useful for the installation of the device it is not absolutely essential You may therefore skip this sec tion for the time being and go straig
56. n to outgoing data traffic The router s IP masquerading func tion hides all workstations of the LAN behind a single public IP address The actual identities IP addresses of the individual workstations remain con cealed Firewall filters of the router permit specific IP addresses protocols and ports to be blocked With MAC address filters it is also possible to specifically monitor the access of workstations in the LAN to the IP routing function of the device Firewall LANCOM Further important features of the Firewall are gt Intrusion Detection Break in attempts into the local network or on the central Firewall are rec ognized repelled and logged by the Intrusion Detection system IDS of the LANCOM Wireless DSL Thereby it can be selected between logging within the device email notification SNMP trap or SYSLOG alarms 1 3 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction gt Denial of Service Protection Attacks from the Internet can be break in attempts as well as attacks with the aim of blocking the accessibility and functionality of individual services Therefore a LANCOM Wireless DSL is equipped with appropriate protective mechanisms which recognize well known hacker attacks and which guarantee the functionality gt Quality of Service Traffic management The generic term Quality of Service brief QoS summarizes the functions of the LANCOM which guarantee certain service qualities The advantage i
57. nd of this chapter we will show you the settings that are needed for the LAN s workstations to ensure trouble free access to the router TCP IP settings to workstation PCs gt page 37 Which information is necessary The basic configuration wizard will take care of the basic TCP IP configuration of the router protect the device with a configuration password and will set up the ISDN connection if required The following descriptions of the informa tion required by the wizard are grouped in these three configuration sections TCP IP settings protection of the configuration information on DSL connection information on ISDN connection vvvvvyv configuring connect charge protection TCP IP settings The TCP IP configuration can be realized in two ways either as a fully auto matic configuration or manually No user input is required for the fully auto matic TCP IP configuration All parameters are set automatically by the setup wizard During manual TCP IP configuration the wizard will prompt you for the usual TCP IP parameters IP address netmask etc more on these topics later Fully automatic TCP IP configuration is only possible in certain network envi ronments The setup wizard therefore analyses the connected LAN to deter mine whether it supports fully automatic configuration LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration New LAN fully automatic configuration possible If all conn
58. on the length of time that it is pressed gt Restarting the device soft reset push the button for less than five seconds The device will restart gt Resetting the configuration hard reset push the button for more than five seconds 24 All the device s LEDs will light up green and stay on As soon as the reset switch is released the device will restart with factory default settings 2 4 Hardware installation The installation of the LANCOM router base station takes place in the follow ing steps Mounting If desired mount the device into a free slot of a 19 rack LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 2 Installation LAN connect the LANCOM router to your LAN or to an individual PC For that purpose plug the included network cable green plugs into the LAN connector of the device and the other end into a free network connect ing socket of your local network into a free socket of a hub switch or into the network socket of an individual PC The LAN connector identifies automatically the transfer rate 10 100 Mbps of the connected network device autosensing A parallel connec tion of devices with different speeds and types is possible You should never have more than one unconfigured LANCOM router in a network segment at any given time All unconfigured LANCOM router devices use the same IP address with the final digits 254 which would result in an address conflict To
59. onfiguration program incl setup wizard LAN monitor Windows status monitor WEBconfig integrated Web Server telnet SNMP management via SNMP V2 remote maintenance via ISDN or Dynamic DNS RADIUS user management for dial in PPP PPTP and ISDN CLIP remote maintenance via ISDN configuration via telnet SSL SSH browser HTTP HTTPS VPN tunnel WAN or LAN access separately activatable simultaneous remote configuration and management of several devices with LANconfig LAN monitor supervisor alarm via SNMP traps SYSLOG and email scheduled events of all parameters and actions e g firewall filter or connections via CRON service Individual access rights for up to 16 administrators Tools LANconfig Windows program LANmonitor Windows status display WEBconfig integrated Web server Statistics Very extensive Ethernet IP and DNS statistics SYSLOG error counter connecting and online time as well as transfer quantity per station accounting information exportable via LANmonitor and SYSLOG Diagnosis Very extensive LOG and TRACE mechanism integrated PING and TRACEROUTE Log ging buffer for SYSLOG and firewall events device integrated Hardware Design without rotating ports and with high MTBF internal power supply 110 230 V temperature 5 40 C humidity 0 80 non condensing Robust metal case 19 1HE 435 x 45 x 207 mm connectors on the front 19 rack mount bit Approvals EU CE certification EN
60. or an ISDN con nection VPN ISDN User name Ea VPN ISDN Password VPN Shared secret for encryption VPN Hide local stations for access to remote network Extranet VPN ISDN Incoming number of remote station ISDN TCP IP routing for access to remote network ISDN IPX routing for access to remote network VPN ISDN IP addresses for the dial up PCs static or dynamic by address range IP address pool VPN ISDN NetBIOS routing for access to remote network VPN ISDN Name of remote workgroup NetBIOS only Notes to the individual values gt User name and password Users authenticate themselves with this information when dialling in gt Incoming number The LANCOM router uses the optional ISDN caller ID as an additional user authentication This security function should not be used when users dial in from differing locations Please refer to chapter Linking two networks gt page 42 for advice about the other values required for the installation of a RAS access The ISDN calling line identity CLI The ISDN caller D also known as CLI Calling Line Identity this is the telephone number of the caller which is transmitted to the participant receiving the call As a rule it consists of the country and area codes and an MSN The CLI is well suited for authentication purposes for two reasons it is very difficult to manip ulate and the number is transferred free of charge via the
61. otection charge lock which are not already activated at the time of purchase of your device The LANconfig wizard Check Security Settings will support you accomplishing this Further informa tion regarding this topic can be found in chapter Security settings page 62 LANCOM 7111 VPN LANCOM 8011 VPN gt Preface Model restriction We ask you additionally to inform you about technical developments and actual hints to your product on our Web page www lancom de and to down load new software versions if necessary User manual and reference manual The documentation of your device consists of two parts the user manual and the reference manual You are now reading the user manual It contains all information you need to start your LANCOM router It also contains the most important technical spec ification for the device The reference manual can be found on the CD as an Acrobat PDF document It is designed as a supplement to the user manual and goes into detail on top ics that apply to a variety of devices These include for example Systems design of the LCOS operating system Configuration Management Diagnosis Security Routing and WAN functions Firewall Quality of Service QoS Virtual Private Networks VPN Virtual Local Networks VLAN Wireless networks WLAN LANCAPI Further server services DHCP DNS charge management VvvvVvVvVvVVvVvVvVVVVY Model variants This user manual applies
62. ow activate Stateful Inspection ping blocking and Stealth mode in the the firewall configuration The wizard will inform you when entries are complete Complete the con figuration with Finish Wizard for WEBconfig Under WEBconfig you have the possibility to run the wizard Security settings to control and change the settings The following values are handled gt password for the device gt allowed protocols for the configuration access of local and remote net works gt the MSN for remote configuration via ISDN gt parameters of configuration lock number of failed log in attempts and duration of the lock The firewall wizard The LANCOM router incorporates an effective protection of your LAN and WLAN when accessing the Internet by its Stateful Inspection firewall and its firewall filters Basic idea of the Stateful Inspection firewall is that only self initiated data transfer is considered allowable All unasked accesses which were not initiated from the local network are inadmissible The firewall wizard assists you to create new firewall rules quickly and com fortably Please find further information about the firewall of your LANCOM router and about its configuration in the reference manual Wizard for LANconfig The firewall wizard assists you to create new firewall rules quickly and com fortably 63 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 8 Security settings 64 8 2 2 8 3 Mark
63. pling networks not just those of the router The computer with the IP address 10 0 2 10 in the branch office LAN sees the server 10 0 1 2 in the headquarters and can access it assuming it has the appropriate rights and vice versa 45 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks 46 DNS access to the remote LAN Thanks to DNS it is not only possible to access remote computers in a TCP IP network via their IP address but also by using freely defined names For example the computer with the name pc1 branch company IP 10 0 2 10 will not only be able to access the server of the head office via its IP address but also via its name server head company The only precondi tion the domain of the remote network in the wizard must be specified The domain can only be specified in the LANconfig wizard In WEBconfig enter the appropriate information later in the expert con figuration For more information see the LANCOM router reference manual Extranet VPN Finally one can decide whether access to local stations is permitted In this Extranet VPN operating mode the IP stations do not expose their IP address to the remote LAN rather they will be hidden behind the VPN gateway s IP address instead Therefore the stations within the remote LAN cannot access IP stations in the other LAN directly For example if a headquarters LAN in Extranet VPN mode is hidden behind its gateway s
64. pter 3 Basic configuration gt IP address assignment via a separate DHCP server The workstation PCs must be configured so that they automatically obtain their own IP address and the IP addresses of the standard gateway and DNS server via DHCP The IP address of the LANCOM router must be stored on the DHCP server so that the DHCP server transmits it to the PCs in the LAN as the standard gateway In addition the DHCP server should also specify the LANCOM router as a DNS server gt Manual IP address assignment If the IP addresses in the network are assigned static ally then for each PC the IP address of the LANCOM router must be set in the TCP IP configura tion as the standard gateway and as a DNS server For further information and help on the TCP IP settings of your LANCOM router please see the reference manual For more informa tion on the network configuration of the workstation computers please refer to the documentation of your operating system 38 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 4 Setting up Internet access Setting up Internet access All computers in the LAN can take advantage of the central Internet access of the LANCOM router The connection to the Internet provider can be estab lished via any WAN connection Internet access via ISDN can be used as a backup connection for DSL for example DSL or ISDN connection router in the LAN of the Internet provider Does the setup wiza
65. r 1000 VPN channels for remote sites or mobile users Due to the Fast Ethernet uplink the devices are the ideal partner for almost all WAN connection variants The integrated multi protocol router and the integrated firewall enable a secure internet access for the local network The ISDN interface is mainly used to establish Dynamic VPN connections to remote sites with dynamic IP addresses Which use does VPN offer A VPN Virtual Private Network can be used to set up cost effective public IP networks for example via the ultimate network the Internet The model LANCOM 7111 VPN is equipped with 100 VPN channels by default the LANCOM 8011 VPN with 200 channels With the addi tional LANCOM VPN Option the LANCOM 8011 VPN can be upgraded to 500 or 1000 channels While this may sound unspectacular at first in practice it has profound effects To illustrate this let s first look at a typical corporate network without VPN technology In the second step we will see how this network can be optimized by the deployment of VPN LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction 10 Conventional network infrastructure First let s have a look at a typical network structure that can be found in this form or similar forms in many companies remote access e g homework The corporate network is based on the internal network LAN in the head quarters This LAN is connected to the outside world in t
66. r WAN connections In addition to LAN connectivity 10 100 Mbps Ethernet several models also offer an integrated switch For the connecting to the WAN the routers use ISDN xDSL cable or ADSL connectors Several devices contain additionally a wireless network card and can thus integrate also stations of WLANs Wireless LANs into the routing The router s task is to transfer data from the local network to the target net work via a suitable WAN connection Data is also transferred from the WAN to the desired recipients in the LAN Areas of deployment for routers Routers are mainly used for the following applications gt Internet access for a LAN e g via DSL or ISDN The Internet consists of countless large and small networks that are inter connected into the world s largest WAN via routers The router links all the workstation computers on your local area network to the global Internet Security functions such as IP masquerading protect your LAN against unauthorized access from outside gt LAN to LAN coupling via VPN or ISDN LAN to LAN coupling links individual LANs to form one large network even if this means crossing continents A typical example A branch office is to be connected to the LAN of the headquarters In principle you can connect LANs in two ways gt High speed coupling via VPN The fastest and most economical LAN to LAN links are possible with VPN Virtual Private Network technology as VPN uses the Internet
67. ration with Apply 41 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks 42 5 Linking two networks With the network interconnection also known as LAN to LAN coupling of the LANCOM router two local networks are linked The LAN to LAN coupling can be realized in principle in two different ways gt VPN For coupling via VPN the connection between both LANs is estab lished over a specially secured connection through the public Internet A router with VPN support is required in both LANs gt ISDN For coupling via ISDN a direct connection between both LANS is established over an ISDN connection A router with ISDN interface is required in both LANs Always configure both sides Both routers involved in the network interconnection must be configured Care must be taken to ensure that the configuration information provided matches i The following instructions will assume that LANCOM router routers are being used on both sides A network interconnection may also be realized with routers from other manufacturers A mixed setup usually requires more extensive configuration measures for both devices however Please refer to the reference manual for more information in this regard A setup wizard handles the configuration of the connection in the usual con venient manner Security aspects You must of course protect your LAN against unauthorized access A LANCOM router therefore offers a whole
68. rd know your Internet provider A convenient wizard is available to help you set up Internet access The wizard knows the access information of major Internet providers and will offer you a list of providers to choose from If you find your Internet service provider on this list you normally will not have to enter any further transfer parameters to configure your Internet access Only the authentication data that are supplied by your provider are required Additional information for unknown Internet providers If the setup wizard does not know your Internet provider it will prompt you for all of the required information step by step Your provider will supply this information gt DSL gt Protocol PPPoE PPTP or Plain Ethernet IPoE gt Additionally for Plain Ethernet own public IP address with netmask not to be confused with the private LAN IP address default gateway and DNS server These values can be received automatically from pro viders that support DHCP gt User name and password 39 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 4 Setting up Internet access 40 gt ISDN dial in number gt User name and password Additional connection options You may also enable or disable further options in the wizard depending on whether or not they are supported by your Internet provider gt Time based billing or flat rate select the accounting model used by your Internet provider gt gt When using
69. rinters and Faxes from the control panel Select the option Set up faxing from the window Printers and Fax Fol low if necessary the instructions of the installation tool Into the recent window an icon will appear for the newly installed fax printer Printers and Faxes File Edit View Favorites Tools Help O O P pO search gt Folders gt Fax Printer Tasks lt a E Add a printer Send a fax See Also a 2 Troubleshoot printing Get help with printing Other Places zn 59 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 7 Sending faxes with LANCAPI 60 7 3 7 3 1 7 3 2 For checking the installation click with the right mouse button on the fax icon and select Properties The LANCOM CAPI fax modem should now be entered into register devices Sending a fax After installing all required components you have several possibilities to send a fax from your workstation PC If you have already an existing data file you can send it directly from your respective application If you only want to send a short message select the MS Windows fax service You can use of course any other fax software alternatively Send a fax with any given office application Open as usual a document in your office application and select the menu item File Print Adjust the fax device as printer Print ax General M Select Printer Add Printer L auto HP DeskJet
70. s on this checklist are no subject of concern in simple configurations since these generally adequate security set tings are already implemented during basic configuration and by the security wizard A Detailed information on the security settings listed here can be found in the reference manual LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 8 Security settings gt Have you assigned a password for the configuration The simplest option for the protection of the configuration is the estab lishment of a password As long as a password hasn t been set anyone can change the configuration of the device The field for entering the password is contained in LANcontig in the Management configuration area on the Security tab It is particularly required to assign a password to the configuration if you want to allow remote configuration gt Have you permitted remote configuration If you do not require remote configuration then deactivate it If you require remote configuration then be sure to assign a password protec tion for the configuration see previous section The field for deactivating the remote configuration is also contained in LANcontig in the Manage ment configuration area on the Security tab Select here under Access rights of remote networks for all types of configuration the option not allowed gt Have you provided the SNMP configuration with a password Also protect the
71. s that the QoS functions can take place by means of the existing powerful classification methods of the Firewall e g limitation of subnetworks single workstations or certain services Guaranteed minimum bandwidths give priority to enterprise critical appli cations VoIP PBX installations or certain user groups More details about the function of the Stateful Inspection Firewall of your LANCOM router can be found in the reference manual on the LANCOM CD What does a router do A The following sections describe the functionality of routers in general The functions supported by your device are listed in the table What can your LANCOM router do gt page 15 Routers connect LANs at different locations and individual PCs to form a Wide Area Network WAN With the appropriate rights any computer in this WAN can access other computers and services of the complete WAN as with PC 1 accessing Server A in the remote LAN in the diagram server A LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction Not possible with all LANCOM devices Connecting a LAN to the Internet does not technically differ from coupling two LANs The only difference is that it is not just a handful of computers behind the Internet provider s router Instead it is the net of the networks the public Internet Bridgehead to the WAN All routers have at least two connections gt atleast one for the LAN gt atleast one fo
72. set up a connection to the remote station and contact the required computer Ping quick testing for TCP IP connections To test a TCP IP connection simply send a ping from your computer to a computer in the remote network For more information on the ping command please see the documentation of your operating system IPX and NetBIOS connection can be GSS Siraeracea tested by searching for a remote Novel SUR ety AE CDC ESC MEG ts E a OOo Server or a computer in the remote Win LEJE Ex 18 0 2 8 bytes 32 time lt i ms Reply Eron 0 2 0 Fiabe pe Lane rom 4 2 0 ime ms dows workgroup from your computer WUES 101012 0 hytes 32 time lt 1 ns Ping statistics for 16 6 2 6 Packets Sent 4 Received oxi mato i De in 49 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 6 Providing dial up access 50 6 Providing dial up access 6 1 Your LANCOM router supports dial up connections to permit individual com puters full access to your network This service is also known as RAS Remote Access Service In principle the RAS access can be realized in two different ways gt VPN For a RAS access via VPN the connection between the LAN and the dial in PC is established over a specially secured connection through the public Internet The router in the LAN requires VPN support the dial in PC an access to the Internet and the LANCOM VPN Client gt ISDN For a RAS access via ISDN a direct connection between th
73. ss to the remote LAN DNS server Domain DSL data transfer is too slow provider transfer protocol DSL transfer protocol E Encryption F Filter mechanisms Firewall Firewall filter FirmSafe Firmware version Flat rate fragmentation 16 29 30 32 35 30 32 42 12 16 73 73 73 23 23 73 37 13 23 37 38 37 50 54 17 46 37 46 67 36 36 32 50 15 66 17 23 40 17 H Hardware installation l ICMP Installation ADSL configuration port ISDN LAN LANtools 25 power adapter Interconnection Security aspects Internet access 14 15 Authentication data Default gateway DNS server Flat rate IP address Netmask Internet provider Intrusion Detection IP Filter Lock ports IP address 29 IP address of the LANCOM IP masquerading 12 14 16 IP router IPoE IPSec 42 IPX Binding 47 External Network Number 47 Frame type Internal Net Number IPX conventions IPX router Settings 24 66 18 25 25 25 25 26 25 42 42 39 39 39 40 39 39 39 12 LANCOM 7111 VPN LANCOM 8011 VPN ISDN Basic configuration caller ID gt Index 44 Connect charge information Connector cable D channel data compression Dial in number dynamic channel bundling MSN NTBA 30 32 password for connection So port ISDN connection Basic settings ISDN leased lines ISDN modem ISDN PBX ISDN Sg connection L LAN Connector cable LAN to LAN coupling Required
74. time based billing you can set the LANCOM router to automatically close existing connections if no data has been trans ferred within a specified time the so called idle time In addition you can activate a line monitor that identifies inactive remote stations faster and therefore can close the connection before the idle time has elapsed gt Active line monitoring can also be used with flat rate billing to con tinuously check the function of the remote station You also have the option of keeping flat rate connections alive if required Dropped connections are then automatically re established gt Dynamic channel bundling ISDN only gt if required the second ISDN B channel will automatically be bundled to the connection This doubles the available bandwidth it may also double your connect charges as well however What s more your ISDN connection will be busy in this case with all other incoming and outgoing calls being rejected gt Data compression ISDN only gt this permits an additional increase in data throughput 4 1 LANconfig Quick access to the setup wizards Under LANcontfig the fastest way to launch the setup wizards is via the button on the toolbar eae 4 2 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 4 Setting up Internet access Instructions for LANconfig Highlight the LANCOM router in the selection window From the menu amp gt Qn bar select Tools gt Setup W
75. to indicate that it has all the information it needs Close the wizard with Finish Configure Dial Up Networking access on the dial in PC as described Next test the connection see box Ping quick testing for TCP IP connec tions page 49 6 4 Instructions for WEBconfig i RAS access via VPN cannot be configured using the wizard under WEBconfig yet It can only be set up in the expert configuration For details please refer to the reference manual 55 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 6 Providing dial up access From the main menu launch the Connect two local networks wizard Follow the wizard s instructions and enter the required information Configure Dial Up Networking access on the dial in PC as described Next test the connection see box Ping quick testing for TCP IP connec tions page 49 56 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 7 Sending faxes with LANCAPI Sending faxes with LANCAPI LANCAPI from LANCOM Systems is a special version of the popular CAPI inter face CAPI Common ISDN Application Programming Interface establishes the connection between ISDN adapters and communications programs For their part these programs provide the computers with office communications func tions such as a fax machine or answering machine The main advantages of using LANCAPI are economic LANCAPI provides all Windows workstations integrated in the LAN local area n
76. ts for the command you are about to execute Arguments osu pesi Change then to menu item Expert configuration gt Status gt LAN statis tics gt Cable test results The results of the cable test for the individual interfaces are show up in a list Expert Configuration amp Status amp LAN statistics Cable Test Results Port Rx Status Rx Distance Tx Status Tx Distance DSL1 open Om open 0m LAN 1 unknown unknown LAN 2 unknown unknown LAN 3 unknown unknown LAN 4 unknown unknown The following results can occur gt OK Cable plugged in correctly line ok gt open with distance Om No cable plugged in or interruption within less than 10 meters distance gt open with indication of distance Cable is plugged in but defect short circuited at the indicated distance gt Impedance error The pair of cables is not terminated with the correct impedance at the other end 69 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 10 Appendix 10 Appendix 10 1 Performance data and specifications Firewall Stateful inspection IP packet filter with port ranges masquerading NAT PAT of TCP UDP ICMP FTP PPTP H 323 NetMeeting IRC and IPSec DNS forwarding inverse mas querading for IP services from the Intranet such as web server support of 2 local net works e g DMZ with own IP address range without NAT port mapping Quality of Service Dynamic bandwidth management with IP traffic shaping limiting
77. ur device has an ISDN connection the wizard asks whether the remote site has ISDN as well gt The type of IP address must be stated for both sides for VPN connections via the Internet There are two types of IP addresses static and dynamic An explanation of the two IP address types can be found in the reference manual Thanks to Dynamic VPN connections can be enabled not only between gateways with fixed static IP addresses but even between gate ways with dynamic IP addresses The active initiation of VPN connec tions towards remote sites with dynamic IP addresses requires ISDN gt Ifyou haven t already named your LANCOM router the wizard will ask you for a new unique device name With this entry you will rename your LANCOM router Be sure to give the two devices different names gt The name of the remote station is needed for its identification gt Enter the subscriber number of the remote station in the ISDN subscriber number field The complete subscriber number including all necessary area and country codes is required gt The stated ISDN caller ID is used to identify and authenticate callers When a LANCOM router receives a call it compares the ISDN caller ID entered for the remote station with the actual caller ID transferred via the D channel An ISDN caller ID generally consists of an area code and an MSN 44 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 5 Linking two networks gt The password for t
78. vices or routers for dedicated lines to individual participants are superfluous The subsidiary also has its own connection to the Internet The RAS PCs connect to the headquarters LAN via the Internet The Internet is available virtually everywhere and typically has low access costs Significant savings can thus be achieved in relation to switched or ded icated connections especially over long distances The physical connection no longer exists directly between two participants instead the participants rely on their connection to the Internet The access technology used is not relevant in this case ideally is the use of broadband 11 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 1 Introduction 12 1 2 technologies such as DSL Digital Subscriber Line or G 703 2 Mbit leased lines But also a conventional ISDN line can be used The technologies of the individual participants do not have to be compatible to one another as would be the case for conventional direct connections A single Internet access can be used to establish multiple simultaneous logical connections to a variety of remote stations The resulting savings and high flexibility makes the Internet or any other IP network an outstanding backbone for a corporate network Firewall The integrated Stateful Inspection Firewall ensures an effective protection against undesired intrusion in your network by permitting only incoming data traffic as reactio
79. will set the address range that the DHCP server uses for the other devices in the network provided that the DHCP server is switched on gt You have previously used IP addresses for the computers in your LAN Information required for manual TCP IP configuration During manual TCP IP configuration the setup wizard will prompt you for the following information gt IP address and netmask for the LANCOM router Assign a free IP address from the address range of your LAN to the LANCOM router and specify the netmask 29 LANCOM 7111 VPN LANCOM 8011 VPN gt Chapter 3 Basic configuration 30 3 1 2 gt Enable DHCP server Disable the DHCP server function in the LANCOM router if you would like to have a different DHCP server assign the IP addresses in your LAN Configuration protection The password for configuration access to the LANCOM router protects the configuration against unauthorized access The configuration of the router contains a considerable amount of sensitive information such as your Internet access information We therefore strongly recommend protecting it with a password The setup wizard for the basic configuration automatically disables remote configuration access via ISDN thus protecting your configuration against tampering ISDN remote configuration access can be enabled at any time using the security wizard see Have you permitted remote configuration page 69 Settings for the DSL connection
80. with dynamic abso lute or per connection transfer limits or guaranteed minimum bandwidths separated from send or receive site TOS or DiffServ priority queuing automatic packet size adoption incl PMTU adjustment or fragmentation Security Intrusion detection IP spoofing login attempt port scans denial of service protec tion fragmentation error SYNflooding automatic closing of ports connections DNS hitlist as well as wild card filter URL blocking High availability with ISDN dial backup for Internet access or VPN connections Email alerting SNMP traps and SYSLOG PAP CHAP and MS CHAP as PPP authentification password protected configuration remote access per interface access control list IP MAC and protocol filter for config uration access and LANCAPI ISDN remote access list FirmSafe with two firmware ver sions for absolute secure software upgrades VPN IPSec 100 IPSec sessions parallel 200 IPSec sessions parallel Can be upgraded to 500 or 1000 channels Encryption methods AES and 3 DES for LANCOM 8011 VPN with hardware accelera tion Blowfish CAST MD 5 or SHA 1 Hashes IKE with Preshared Keys IKE config mode Up to 8 redundant VPN gateways for load balancving and high availability IPSec clients LANCOM Advanced VPN Client for windows operating systems incl firewall auto matic line management X auth Config Mode IPCOMP etc available in different license scales LANCOM Dynamic VPN Connection to
81. x stands for the first three blocks in the IP address of the configuration PC Network with DHCP server If a DHCP server is active in the LAN to assign IP addresses an unconfigured LANCOM device will turn off its own DHCP server It will change into DHCP client mode and will obtain an IP address from the DHCP server of the LAN This IP address is not known at first The accessibility of the device depends on the name resolution If there is a DNS server for name resolution in the LAN which inter changes the assignment of IP addresses to names with the DHCP server then the device can be accessed by the name LANCOM lt MAC address gt e g LANCOM 00a057Xxxxxx Z LANCOM 1811 Wireless DSL Microsoft Internet Explorer ee Ebi File Edit View Favorites Tools Help Back gt amp A A Bsearch Favorites meda lt 4 G5 amp Address http LANCOM ooa057000944 GO Links Te The MAC address can be found on a label at the bottom of the device gt If there is no DNS server in the LAN or it is not linked to the DHCP server then the device can not be reached by the name The following options remain in this case gt Figure out the DHCP assigned IP address of the LANCOM by suitable tools and contact the device directly with this IP address gt gt Use LANconfig gt Connect a PC with a terminal program via the serial configuration interface to the device Starting the wizards in WE

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