[cisco-voip] Simple VOIP question: Switch related

[Jeff Cartier]

I'm having the worst time trying to figure out a problem.

 

The issue is that a 7912 phone seems to be getting an IP address in the
data subnet.  We've tried two configurations on the switchport level and
neither are working...

 

Interface fa0/1

switchport mode access

switchport voice vlan 2

srr-queue bandwidth share 10 10 60 20

priority-queue out

mls qos trust cos

auto qos voip trust

spanning-tree portfast

 

AND/OR

 

Interface fa0/1

Switchport mode trunk

switchport trunk encapsulation dot1q

switchport voice vlan 2

srr-queue bandwidth share 10 10 60 20

priority-queue out

mls qos trust cos

auto qos voip trust

spanning-tree portfast

 

And yet the phone keeps receiving an IP address in the data subnet.

 

We've verified the following:
- helper-address on the router

- correct DHCP scope

 

 

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