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what command on switch to find out the router logical int.

May you let me know how can I find out the logical interface on a router from a switch.

I have a server that is currently cannot be remoted into. I suspect that the server cannot talk to the gateway. I log into the switch and find out what is the VLAN # that the server belongs to. From here how can I find out the the logical interface on the router that this VLAN belongs to. Because I want to see the configuration on the router for this VLAN and the ip to confirm the gateway IP for this VLAN.

2 REPLIES

what command on switch to find out the router logical int.

The command is: show cdp nei detailed

Then you can check the interface which is connected to the vlan where the server is.

regards,

Leo

what command on switch to find out the router logical int.

Once you find out which VLAN server belongs to in the switch then you log into the router and run the following command on the router:

"show ip int br"

That command will show you all the physical and logical interfaces and then once you find the logica interface for that particular VLAN simply runn the command:

"show runn interface interface-name"

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