Hi
I need to connect a VOIP phone with the voice and PC port connected to the ports of the layer 3 switch. The PC port of the phone connected to the switchport which belongs to the VLAN other than VLAN of the voice port as follows.
VOIPhone--(voice port)-----SW |_______(PC port)______|
Any STP issue? The IP will be assigned from the PC port or the voice port? The VOIP phone keeps on releasing it's assigned IP with this configuration. Why?
Thanks
The standard VoIP Phone is not meant to be connected to the network switch via it's PC Port. It's meant to have a PC attached to the PC port. The phone should be attached to the network switch via it's switch port only. This port should be configured to trunk - so that the PC port can be on a separate VLAN than the phone itself. Assuming you are using a Cisco VoIP phone and you have one VLAN for the VoIP Phone and a separate one for the PC that's attached to the phone, here's sample configurations of the switch config:
Cisco IOS Switch interface FastEthernet0/9 description IP phone switchport trunk encapsulation dot1q switchport trunk native vlan 75 !
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