How to see which interface has phone plugged in?

Unanswered Question
Dec 3rd, 2008

Have a 3750 switch running IOS 12.2 with both 7940 phones and desktop computers plugged into it.

We have 2 VLANs set up, (one for voice and one for data).

I am trying to figure out how I can find out which interface has a phone plugged in to it and which has a computer plugged in to it.

I know there is a way to do this because I accidentally stumbled across it a while back and remember thinking "Wow, this could be useful someday" but now that I need it I forgot how I did it!

I have this problem too.
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deepak.dalal Wed, 12/03/2008 - 16:19

Jon's solution would be the better option if inline power is used. If the phones are powered using bricks, then I would recommend

#show cdp neighbors | include IP Phone

Deepak

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