We have a voice vlan set up to handle our Cisco IP phones. Our edge router at a given site handles the dhcp for the phones (on vlan 3). What is happening is that our phone is sending its dhcp request through it's native vlan (vlan 2) instead of vlan 3 like all of our other sites do so what happens is that dhcp in vlan 2 gets forwarded to a dhcp server on our NOC network. I just want it to get it's ip from the local edge router. Any ideas why this switch is doing this? The edge router is a 3550 12G and the powered switch is a 3550 Powered switch. Both are running 12.2T. All of our other same model switches run the same IOS. So I know that the IOS shouldn't be an issue. The interface config for the phone is as follows:
interface FastEthernet0/2
description Admin Workstion / CISCO PHONE
switchport access vlan 2
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
switchport voice vlan 3
no logging event link-status
no snmp trap link-status
spanning-tree portfast
spanning-tree guard root
I have also tried the new way with no trunking. Neither way works. I have attached the edge router config to help out. THe vlans show in "show vlan" and everything seems to check out. I am at a loss here and am looking for a fresh mind :). Thanks in advance!
