Lab 4.2.6 Troubleshooting IP Address Issues – Instructor Version 2500
Contents
1. Lab 4 2 6 Troubleshooting IP Address Issues Instructor Version 2600 e 9026 ec se ec 9006 M Ze eon t Router 1 Router 2 Router Router Enable Enable VTY and Routing RIP network designation Name secret console password protocol statements password Router IP host Fast Interface Serial 0 Interface Serial 1 Subnet designation name Ethernet 0 type fae o LKE type address mask all address Serial 0 Serial 1 addresses 192 168 16 1 192 168 15 2 255 255 255 0 Straight through cable Serial cable lt U ics e Console Rollover Seeeeeeeeeeeeeeeeeeee Crossovercable Objective e Configure two routers and two workstations in a small WAN e Troubleshoot problems introduced by incorrect configurations Background Preparation Cable a network similar to the one in the diagram Any router that meets the interface requirements may be used Possible routers include 800 1600 1700 2500 2600 routers or a combination Refer to the chart at the end of the lab to correctly identify the interface identifiers to be used based on the equipment in the lab The configuration output used in this lab is produced from 1721 series routers Any other router used may produce slightly different output The following steps are intended to be executed on each router unless specifically instructed otherwise Start a HyperTerminal session as performed in the Establishing a HyperTerminal session lab2. IP Address 192 168 16 2 IP subnet mask 255 255 255 0 Default gateway 192 168 16 1 Step 3 Ping from the workstation a From a Windows host click on Start gt Programs gt Accessories gt Command Prompt This will open a Command Prompt window Test that the TCP IP stack and default gateway on the workstation are configured and work properly Use the MS DOS window to ping the routers Issue the following command C gt ping 192 168 14 1 The ping should respond with unsuccessful results Check configurations on the host and routers There are two problems that were introduced into the configurations Correct the configurations and ping all interfaces on the hosts and routers What were the problems The default gateway for the host connected to the Gadsden router is incorrect It should be 192 168 14 1 The IP address configured on the Serial 0 0 interface of the Gadsden router is incorrect It should be 192 168 15 1 Upon completion of the previous steps logoff by typing exit Turn the router off 567 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc Erasing and reloading the router Enter into the privileged EXEC mode by typing enable If prompted for a password enter class If class does not work ask the instructor for assistance Router gt enable At the privileged EXEC mode enter the command erase startup config Router erase startup config The respondin
3. no ip address shutdown router rip network 192 168 14 0 network 192 168 15 0 i ip classless ip http server line con 0 password cisco logging synchronous login line aux 0 line vty 0 4 password cisco login end 149 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright O 2003 Cisco Systems Inc BAD CONFIG GAD show running config Building configuration Current configuration 682 bytes version 12 1 no service single slot reload enable service timestamps debug uptime service timestamps log uptime no service password encryption hostname GAD enable secret 5 1 qcn7 VrQGYlNfN9K70T6pwzDyCO enable password cisco ip subnet zero ip host BAM 192 168 16 1 192 168 15 2 l i T interface EthernetO ip address 192 168 14 1 255 255 255 0 interface SerialO ip address 192 168 16 2 255 255 255 0 clockrate 56000 interface Seriall no ip address shutdown router rip network 192 168 14 0 network 192 168 15 0 j ip classless ip http server line con 0 password cisco logging synchronous login line aux O0 line vty 0 4 password cisco login end 150 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc Cisco SYSTEMS nito in ridic br
4. 14 2 The configuration for the host connected to the BHM Router is IP Address 192 168 16 2 IP subnet mask 255 255 255 0 Default gateway 192 168 16 1 Step 3 Ping from the workstation a From a Windows host click on Start gt Programs gt Accessories gt Command Prompt This will open a Command Prompt window Test that the TCP IP stack and default gateway on the workstation are configured and work properly Use the MS DOS window to ping the routers Issue the following command C gt ping 192 168 14 1 The ping should respond with unsuccessful results Check configurations on the host and routers There are two problems that were introduced into the configurations Correct the configurations and ping all interfaces on the hosts and routers What were the problems The default gateway for the host connected to the Gadsden router is incorrect It should be 192 168 14 1 The IP address configured on the Serial 0 interface of the Gadsden router is incorrect It should be 192 168 15 1 Upon completion of the previous steps logoff by typing exit Turn the router off 146 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc Erasing and reloading the router Enter into the privileged EXEC mode by typing enable If prompted for a password enter class If class does not work ask the instructor for assistance Router gt enable At the privileged EXEC mode enter the comman
5. 168 15 0 network 192 168 16 0 ip classless ip http server dial peer cor custom line con 0 password cisco login line aux 0 line vty 0 4 password cisco login end BHM 572 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc
6. A0 0 80 1 In order to find out exactly how the router is configured look at the interfaces This will identify the type of router as well as how many interfaces the router has There is no way to effectively list all of the combinations of configurations for each router class What is provided are the identifiers for the possible combinations of interfaces in the device This interface chart does not include any other type of interface even though a specific router may contain one An example of this might be an ISDN BRI interface The string in parenthesis is the legal abbreviation that can be used in IOS command to represent the interface 569 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc GAD show running config Building configuration Current configuration 830 bytes l version 12 2 service timestamps debug uptime service timestamps log uptime no service password encryption hostname GAD enable secret 5 1 YWQ3 9yxnEcyZyFuFQThPcqjdl enable password cisco ip subnet zero ip host BHM 192 168 16 1 192 168 15 2 ip host GAD 192 168 14 1 192 168 15 1 call FSVp syne Y Ze q 1 I m D i nterface FastEthernet0 0 ip address 192 168 14 1 255 255 255 0 duplex auto Speed auto interface Serial0 0 ip address 192 168 15 1 255 255 255 0 no fair queue clockrate 56000 I interf
7. Cisco SYSTEMS npo in rici b Lab 4 2 6 Troubleshooting IP Address Issues Instructor Version 2500 e 9026 ec se ec 9006 M Ze eon t Router 1 Router 2 Router Router Enable Enable VTY and Routing RIP network designation Name secret console password protocol statements password Router IP host Fast Interface Serial 0 Interface Serial 1 Subnet designation name Ethernet 0 type fae o LKE type address mask all address Serial 0 Serial 1 addresses 192 168 16 1 192 168 15 2 255 255 255 0 Straight through cable Serial cable lt U ics e Console Rollover Seeeeeeeeeeeeeeeeeeee Crossovercable Objective e Configure two routers and two workstations in a small WAN e Troubleshoot problems introduced by incorrect configurations Background Preparation Cable a network similar to the one in the diagram Any router that meets the interface requirements may be used Possible routers include 800 1600 1700 2500 2600 routers or a combination Refer to the chart at the end of the lab to correctly identify the interface identifiers to be used based on the equipment in the lab The configuration output used in this lab is produced from 1721 series routers Any other router used may produce slightly different output The following steps are intended to be executed on each router unless specifically instructed otherwise Start a HyperTerminal
8. Note Work in teams of two Team member 1 should configure the GAD router according to the table above and its attached workstation according to the instructions below Team member 2 should configure the BHM router and its workstation Both configurations have errors and will result in IP related communications problems Team member 1 will then troubleshoot problems with the BHM router and workstations and Team member 2 will troubleshoot problems with the GAD router and workstations 566 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc Note Go to the erase and reload instructions at the end of this lab Perform those steps on all routers in this lab assignment before continuing Step 1 Configure the routers a If there are any difficulties configuring hostname or passwords refer to the Configuring Router Passwords lab If there are any difficulties configuring interfaces or the routing protocol refer to the Configuring Host Tables lab This lab requires that the IP host tables are configured Verify the routers configurations by performing a show running config on each router If not correct fix any configuration errors and verify Step 2 Configure the workstations a b The configuration for the host connected to the GAD Router is IP Address 192 168 14 2 IP subnet mask 255 255 255 0 Default gateway 192 168 14 2 The configuration for the host connected to the BHM Router is
9. ace FastEthernet0 1 no ip address shutdown duplex auto speed auto interface Serial0 1 no ip address router rip network 192 168 14 0 network 192 168 15 0 ip classless ip http server dial peer cor custom 570 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright O 2003 Cisco Systems Inc i line con O0 password cisco login line aux 0 line vty 0 4 password cisco login end GAD BHM show runnig config Building configuration Current configuration 823 bytes version 12 2 service timestamps debug uptime service timestamps log uptime no service password encryption hostname BHM enable secret 5 S1SRA4a2 fw5JOv1b753yRuXQo J1J1 enable password cisco ip subnet zero ip host BHM 192 168 16 1 192 168 15 2 ip host GAD 192 168 14 1 182 158 15 1 call rsvp sync ES X 1 T 1 Ze E i nterface FastEthernet0 0 ip address 192 168 16 1 255 255 255 0 duplex auto Speed auto interface Serial0 1 no ip address shutdown no fair queue interface FastEthernet0 1 no ip address shutdown duplex auto 571 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc speed auto l interface Serial0 0 ip address 192 168 15 2 255 255 255 0 router rip network 192
10. d erase startup config Router erase startup config The responding line prompt will be Erasing the nvram filesystem will remove all files Continue confirm Press Enter to confirm The response should be Erase of nvram complete Now at the privileged EXEC mode enter the command reload Routertconfig treteadRouter reload The responding line prompt will be System configuration has been modified Save yes no Type n and then press Enter The responding line prompt will be Proceed with reload confirm Press Enter to confirm In the first line of the response will be Reload requested by console After the router has reloaded the line prompt will be Would you like to enter the initial configuration dialog yes no Type n and then press Enter The responding line prompt will be Press RETURN to get started Press Enter The router is ready for the assigned lab to be performed 147 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc Router Interface Summary Router Ethernet Ethernet Serial Serial Interface Model Interface 1 Interface 2 Interface 1 Interface 2 5 800 806 Ethernet 0 EO Ethernet 1 E1 1600 Ethernet 0 EO Ethernet 1 E1 Serial 0 SO Serial 1 S1 1700 FastEthernet 0 FAO FastEthernet 1 FA1 Serial 0 SO Serial 1 81 2500 Ethernet 0 EO Ethernet 1 E1 Serial 0 SO Serial 1 S1 2600 FastEth
11. ernet 0 0 FastEthernet 0 1 FA0 1 Serial 0 0 S0 0 Serial 0 1 FA0 0 80 1 In order to find out exactly how the router is configured look at the interfaces This will identify the type of router as well as how many interfaces the router has There is no way to effectively list all of the combinations of configurations for each router class What is provided are the identifiers for the possible combinations of interfaces in the device This interface chart does not include any other type of interface even though a specific router may contain one An example of this might be an ISDN BRI interface The string in parenthesis is the legal abbreviation that can be used in IOS command to represent the interface 148 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc GAD show running config Building config fatilioH s Current configuration 682 bytes version 12 1 no service single slot reload enable service timestamps debug uptime service timestamps log uptime no service password encryption hostname GAD enable secret 5 1 qcn7 VrQGYlNfN9K70T6pwzDyCO enable password cisco ip subnet zero ip host BHM 192 168 16 1 192 168 15 2 E ER interface EthernetO ip address 192 168 14 1 255 255 255 0 interface SerialO ip address 192 168 15 1 255 255 255 0 clockrate 56000 interface Seriall
12. g line prompt will be Erasing the nvram filesystem will remove all files Continue confirm Press Enter to confirm The response should be Erase of nvram complete Now at the privileged EXEC mode enter the command reload Routertconfig treteadRouter reload The responding line prompt will be System configuration has been modified Save yes no Type n and then press Enter The responding line prompt will be Proceed with reload confirm Press Enter to confirm In the first line of the response will be Reload requested by console After the router has reloaded the line prompt will be Would you like to enter the initial configuration dialog yes no Type n and then press Enter The responding line prompt will be Press RETURN to get started Press Enter The router is ready for the assigned lab to be performed 568 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc Router Interface Summary Router Ethernet Ethernet Serial Serial Interface Model Interface 1 Interface 2 Interface 1 Interface 2 5 800 806 Ethernet 0 EO Ethernet 1 E1 1600 Ethernet 0 EO Ethernet 1 E1 Serial 0 SO Serial 1 S1 1700 FastEthernet 0 FAO FastEthernet 1 FA1 Serial 0 SO Serial 1 81 2500 Ethernet 0 EO Ethernet 1 E1 Serial 0 SO Serial 1 S1 2600 FastEthernet 0 0 FastEthernet 0 1 FA0 1 Serial 0 0 S0 0 Serial 0 1 F
13. session as performed in the Establishing a HyperTerminal session lab Note Work in teams of two Team member 1 should configure the GAD router according to the table above and its attached workstation according to the instructions below Team member 2 should configure the BHM router and its workstation Both configurations have errors and will result in IP related communications problems Team member 1 will then troubleshoot problems with the BHM router and workstations and Team member 2 will troubleshoot problems with the GAD router and workstations 145 833 CCNA 2 Routers and Routing Basics v 3 1 Lab 4 2 6 Copyright 2003 Cisco Systems Inc Note Go to the erase and reload instructions at the end of this lab Perform those steps on all routers in this lab assignment before continuing Step 1 Configure the routers a If there are any difficulties configuring hostname or passwords refer to the Configuring Router Passwords lab If there are any difficulties configuring interfaces or the routing protocol refer to the Configuring Host Tables lab This lab requires that the IP host tables are configured Verify the routers configurations by performing a show running config on each router If not correct fix any configuration errors and verify Step 2 Configure the workstations a b The configuration for the host connected to the GAD Router is IP Address 192 168 14 2 IP subnet mask 255 255 255 0 Default gateway 192 168
Download Pdf Manuals
Related Search