Troubleshooting of RIP v2
There are several ways to verify and troubleshoot RIP v2.The basics troubleshooting for RIP v2 are-
-Make sure that all the links are up and working.
-Check the connectivity of each cable.
-Make sure that all interfaces configured with correct IP address and subnet mask.
-Remove the configuration commands that are no longer necessary.
1. ‘show ip route’ command-
This command is used to check the network convergence and shows all the routes entered in the routing table.
Router# show ip route
2. ‘show ip int brief’ command-
If any network is missing in the routing table, we can check the interface by this command whether all are up or not .Because if any interface is down, it will show missing route of that interface. This command give the briefly status of all interfaces.
Router# show ip int brief
3. ‘show ip protocols’ command-
This command verifies several things such as-which protocol is configured, the version of RIP, the status of automatic summarization and the networks that are configured in the network statement. This command shows the ‘routing information sources’ at the bottom of the output, from which this router is receiving updates.
Router# show ip protocols
4. ‘debug ip rip’ command-
This command use to examine the content of the routing updates that are sent and received by a router. Some it can be happen when a route is received by a router but not added in the routing table and the reason could be that a static route is also configured for the same advertise network. Static route has low administrative distance than dynamic routing protocol and will take precedence in being added in the routing table.
Router# debug ip rip
5. ‘ping’ command-
This command use to verify the connectivity between the routers. First ping the local interface, if it is successful then check the directly connected network and if it is also success continue ping on each router in the network. If ping fails, check the local interfaces connectivity and configuration.
6. ‘show running-config’ command-
This command shows the current configuration of the router.
Router# show running-config
Some common issues-
1. Version-at the time of troubleshooting it is important to check the version of the RIP configured on all the routers
2. Network statement-check the network command that should be configured correctly. This statement enables the routing protocol to send and receive updates on any interface that belong to that network.
3. Automatic summarization-If no need to summarize the route, disable automatic summarization with ‘no auto-summary’ command.
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