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Virtual IP on 3945 w/switch module

Has anyone seen this?

Have a 3945 router with a switch module.  When doing a trace route from the switch module it shows the management interface first and then a unknown or perhaps a virtual address of 10.10.3.29 that is configured no where on the router or switch and from there it goes out a configured router port as expected.  From the router side, trace route goes directly to the address when we trace route to the 10.10.3.29.  Port g0/1 of the router is configured with 10.10.10.1/24 to talk to the switch module through the virtual  port g0/18.  We could not find any documentation to reveal what was happening.  Does anyone know what is occurring here and could you point me to the documentation that pertains to this?

Dale

1 REPLY
Purple

Re: Virtual IP on 3945 w/switch module

Could you post the output of this command: show ip int br | ex una

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