RIP failing after first update

[jphilp]

Hi All,

can anyone suggest why I only get the first routing update from RIP, I'm just advertising the default route to a remote site.

The remote site receives the RIP route but it then times out as it does not receive any more updates. The timers are set the same at both ends.

4 other sites off the main router work fine. This is a new circuit and router. The remote router is configured the same as the other 4.

Regards

John

[yunas_cisnix]

What are your platform and configuration, write them here. These kind of data are necessary for troubleshooting. 

[paul driver]

Hello

Do you have  a stable connection between these two sites that have this problem?

Have you applied any debugging for rip to see what's the root cause could be

debug condition interface x/x
debug ip rip

res
Paul

[Peter Paluch]

John,

In addition to the suggestions by other friends, is there a possibility you have configured the ip rip triggered on the interface toward the newly added remote site? This would start an extension to RIP that was meant only for dialed links to prevent them from being continuously brought up by RIP while still being able to exchange routes, and if used improperly, it could result in the behavior you are experiencing.

Best regards,
Peter

[jphilp]

Hi All,

the problem has been resolved. The link was set up as Non-broadcast multi-access which means that broadcast packets were being dropped. This was proved by trying to ping 224.0.0.9 and the broadcast address of the link's IP address. Both failed but the existing 4 other links did work. I contacted the Telco and they confirmed that broadcasts were not allowed. The enabled broadcasts and it all sprung into life :)

Regards

[Peter Paluch]

John,

Thanks for sharing that info with us. Nice piece of troubleshooting!

Best regards,
Peter