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RIP doubt.

I have several devices connected to a wire, let's say 210.20.0.0/25. There's RIP configured among them, that way:

!

router rip

version 2

redistribute connected

redistribute static

network 210.20.0.0

no auto-summary

!

One of the devices, 210.20.0.1, has a static route like this:

ip route 0.0.0.0 0.0.0.0 210.20.0.2

The thing is that this route points to 210.20.0.2, and so, if I am not wrong, rip won't redistribute it though the ethernet (though being a static route and having redistribute static in the conf) for the destination belongs to the own 210.20.0.0 network. And that's what happens in my Lab.

But the surprise comes at customer's site where 210.20.0.2 has an entry for 0.0.0.0 learned via RIP from 210.20.0.1 !!!

I wonder if there is any configuration that could make it happen, taking into account that RIP configuration is exactly as I depicted before.

Thanks,

Joan

1 REPLY
Anonymous
N/A

Re: RIP doubt.

You can verify whether split-horizon is enabled or disabled on the ethernet interface of the device 210.20.0.1 . But, even if split-horizon is disabled, I guess you should not see this route on 210.20.0.2 though it may be installed on other routers belonging to the same ethernet segment 210.20.0.0/25, since the next-hop advertised by 210.20.0.1 in the RIP update will be pointing to 210.20.0.2. You can use the 'debug ip rip' commands on both the routers to see the RIP routes being advertised and received by them. This will help you find what is happening.

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