[cisco-voip] problem with phone getting DHCP address from voicevlan

[Lelio Fulgenzi]

We have a number of new phones with a problem whereby they get a DHCP address from the data VLAN not the voice VLAN. The only way to make it work is to remove the data VLAN, let the phone upgrade and then everything works after replacing the data VLAN even after erasing the phone configuration.

Here's the specific phone load information:

App Load ID: P003030IMFG2
Boot Load ID PC0303010200
Version: 3.1 (MF.G2)

Here's my switch config:

interface FastEthernet1/0/40
 switchport access vlan 1220                  *this is what I remove to make things work*
 switchport mode access
 switchport voice vlan 3104
 srr-queue bandwidth share 10 10 60 20
 srr-queue bandwidth shape  10  0  0  0
 mls qos trust device cisco-phone
 mls qos trust cos
 auto qos voip cisco-phone
 spanning-tree portfast
end

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Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
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"Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo."      WJR
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