On a cisco switch, we have what's called the native vlan for a port, and what's called the aux (or voice) vlan. Normally, the native (or access) vlan is where a normal data device would be - for example, Vlan 10. If a phone were to be connected, the phone and switch would exchange CDP (Cisco Discovery Protocol) information, the switch would then know it's a phone, and stick it in the Aux (or voice) vlan - lets say that was vlan 20. If I plugged a pc into the back of a phone, it would still connect to the data vlan , which is 10. Since you're on an HP switch, and don't have support for CDP (do you? I know there was some sort of licensing agreement thing cisco did with HP, but I don't know if that applies) I don't know if its possible to happen automatically or not. What procurve do you have? Best case, there is an OEM implementation of CDP, and you just need to know how to specify the voice vlan. Worst case, it won't work, and you will have to statically set each port per vlan - and not be able to separate them. I don't deal with HP switches much these days (ever), but this might get you pointed in the right direction.
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by: acqantPosted on 2007-02-22 at 14:02:07ID: 18591987
I have nortel ip phones and in the phone we have to set the VLAN for the phone. OR your dhcp needs to configure the vlan that the phone is in.
check the phone docs for a vlan setting.