[cisco-voip] Simple VOIP question: Switch related

[Jeff Cartier]

I think we've narrowed it down to the customer either 1) bridging vlan 1
into vlan 2....or 2) incorrect configurations on the DHCP server.

I thought I was losing my mind for a few moments trying to figure this
out :D

Jeff Cartier
Applied Computer Solutions
(519) 944-4300 ext. 233

-----Original Message-----
From: Joe Cisco [mailto:smetsysocsic at gmail.com] 
Sent: Tuesday, July 22, 2008 1:52 PM
To: Jeff Cartier
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Simple VOIP question: Switch related

One or the other of the two above should work ok.

When you go into network settings on the phone what does it show for
the operational vlan id? If it shows the correct voice vlan ID, are
your two vlans physically cross-connected somewhere else? What does it
show for the dhcp server? How old is the firmware on the phone? If you
plug another model phone into this port, does it work ok?

-Joe C.

On Tue, Jul 22, 2008 at 12:00 PM, Jeff Cartier <jcartier at acs.on.ca>
wrote:
>
>
> 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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>