Duplicate IP Addresses

ek36 · ‎11-05-2003

Which command would indicate Duplicate IP Addresses:

Sh interfaces or sh logging??

Thanks in advance.

liviu.gheorghe · ‎11-06-2003

With sh logging you can see messages regardin duplicate IP address detected by the router.

Cheers

Regards, LG
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jyuffa · ‎12-21-2003

Hi Georg,

I've tried sh logging and didn't see any messages related to duplicate address.

Here is what I did:

1. Connected 2 2503 serial ports with back to back cable.

2.Configured ehternet ports on both with no keepalive to bring them to up/up state.

3. Enabled RIP routing on both

4. Configured e0 on one router matching ip address of s0 of another router

5. Issued sh logging on both routers-no duplicate message was lobserved.

Please advice.

Thanks

Joseph

mparekh · ‎12-24-2003

the setup you have is not going to work because you cannot have interfaces on same network on a router. from my understanding it shouldn't allow you to assign an IP address on the S0 interface on the same network as Ethernet interface.