Routing Information Protocol (RIP) Configuration.

RouterA#show ip route

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, serial0/1

C 3.0.0.0/8 is directly connected, serial0/0

C 192.168.1.0/24 is directly connected, loopback0

Configure RIP on Router A

RouterA#configure terminal

RouterA#(config)#router rip

RouterA#(config-router)#network 3.0.0.0

RouterA#(config-router)#network 1.0.0.0

RouterA#(config-router)#network 192.168.1.0

RouterA#(config-router)#exit

RouterA#(config)#



Now verify these configuration on router A with command us under:

RouterA#show ip route

To check the routing protocol with this command.

RouterA#show ip protocols



RouterB#show ip route

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, serial0/1

C 2.0.0.0/8 is directly connected, serial0/0

C 192.168.1.0/24 is directly connected, loopback0



Configure RIP on Router B



RouterB#configure terminal

RouterB#(config)#router rip

RouterB#(config-router)#network 1.0.0.0

RouterB#(config-router)#network 2.0.0.0

RouterB#(config-router)#network 192.168.2.0

RouterB#(config-router)#exit

RouterB#(config)#



Now verify these configuration on router B with command us under:

RouterB#show ip route

RouterC#show ip route

Gateway of last resort is not set

C 2.0.0.0/8 is directly connected, serial1

C 3.0.0.0/8 is directly connected, serial0

C 192.168.3.0/24 is directly connected, loopback0



Configure RIP on Router C

RouterC#configure terminal

RouterC#(config)#router rip

RouterC#(config-router)#network 2.0.0.0

RouterC#(config-router)#network 3.0.0.0

RouterC#(config-router)#network 192.168.3.0

RouterC#(config-router)#exit

RouterC#(config)#



Now verify these configuration on router C with command us under:

RouterC#show ip route

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Break or recover the router password

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Turn the power switch off and back on to recycle the power.
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Press the Break key or key sequence to put the router into ROM Monitor mode. The break key varies by computer or terminal software. The sequence might be CTRL-D, CTRL-Break or another combination.
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At the > prompt, type 0 to record the current value of the configuration register normally 0x2102, or 0x102.

>o

Configuration register = 0x2102 at last boot

Bit# Configuration register option settings:

15 Diagnostic mode disabled.
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Type o/r 0x2142 to tell the router to boot from flash without loading the configuration in NVRAM at the next reload.
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Type i to have the router reboot. The router ignores the configuration in NVRAM.
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The router runs the setup dialog, Type no or press Ctrl-C to skip the initial setup Dialog.
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Type enable ate the Router> prompt to go to privileged exec mode.
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Copy the startup configuration to the running configuration by using the configure memory or copy startup-config running-config commands. Do not type configure terminal. If you use the configure terminal command, you overwrite the configuration stored in NVRAM.
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View the configuration by typing write terminal or show running-config. View the configured line, vty and enable passwords. Any encrypted passwords need to be changed.
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Enter the configuration mode by typing configure terminal. Change the line of enable passwords as necessary.
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All interfaces are in a shutdown state. Issue the no shutdown command on every interface that is to be used.
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Type config-register 0x2102 to return the router to normal operation at the next reloads.
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Exit configuration mode by pressing Ctrl-Z
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Save your changes by typing write memory or copy running-config startup-config.
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Reload the router and verify the passwords.