Configuring Timers, Static Neighbors, Max Paths, and
Passive-Interfaces
Lab Objectives
- Configure network with IP addresses.
- Configure routers 1, 2, 3, and 4 to run RIP.
- Set the interval between updates, invalid, holddown, and flush timers to half their default values on the routers running RIP.
- Statically set router 3's RIP neighbors.
- Configure router 2 to to use a maximum of 2 paths.
- Disable routing updates from being received by router 5.
Completed Routing Configuration
The following are the completed configurations for the routers in this lab.
Router 1 Config
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Router 2 Config
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Router 3 Config
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Router 4 Config
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Router 5 Config
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Changes Made
- Network was configured by giving each point to point link their own class C network.
- RIP timers were changed with the 'timers basic 15 90 90 120' command.
- Router 3's neighbors were set statically with the 'neighbor ipaddress' command where the IP address is that of each of router 3's neighbors.
- Router 2 was configured to use two paths by issuing the 'maximum-paths 2' command under RIP configuration.
- Router updates were disabled from being received by router 5 by issuing the 'passive-interface int' command on router 3 and 4's interfaces that connect to router 5.
Testing and Verifying
- RIP timers can be verified by issuing the 'show ip protocols' command as follows.
2. RIP neighbors can also be confirmed with the 'show ip protocols' command on router 3.
3. The maximum paths for router 2 can also be confirmed with the 'show ip protocol' command as shown.
4. The last step is to verify that router 5 is not receiving RIP updates. To test this we'll issue the 'debug ip rip' command on routers 3 and 4.
The following output is from router 3.
The following output is from router 3.
Notice that RIP never sends an update out interface s0/3 which is the interface connected to router 5. Debug router 4 as well and confirm
that no updates are sent across s0/2.
that no updates are sent across s0/2.