[cisco-voip] phones getting IP from data VLAN

[Curt Shaffer]

I put it in access VLAN 20 (the voice VLAN) and it got the correct IP range.
But a reboot after that sent it back to the data VLAN.

 

From: Lelio Fulgenzi [mailto:lelio at uoguelph.ca] 
Sent: Saturday, November 24, 2007 3:31 PM
To: Curt Shaffer; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] phones getting IP from data VLAN

 

no - add the voice vlan to the port as if it were the data vlan, plug in the
phone, let it do it's thing, then you can resort back to voice/data vlan
config.

 

or rather than changing ports all over the switch, just bring the phones to
a depot with the right config, let the phones upgrade, then redeploy.

 

your choice.

 

----- Original Message ----- 

From: Curt Shaffer <mailto:cshaffer at gmail.com>  

To: 'Lelio Fulgenzi' <mailto:lelio at uoguelph.ca>  ;
cisco-voip at puck.nether.net 

Sent: Saturday, November 24, 2007 3:20 PM

Subject: RE: [cisco-voip] phones getting IP from data VLAN

 

Yes they are right out of the box. When you are saying put them directly
into the voice vlan you mean only adding switch port voice vlan xx on the
switch port only?

 

From: Lelio Fulgenzi [mailto:lelio at uoguelph.ca] 
Sent: Saturday, November 24, 2007 2:53 PM
To: Curt Shaffer; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] phones getting IP from data VLAN

 

Are these newly deployed phones? There was (and still is likely) an issue
with phones out of the box that need to be put on the voice vlan directly in
order to get the ball rolling. People have said the TAC told them the same
thing.

 

I ran into this and once the initial upgrade happened, things were fine.

 

----- Original Message ----- 

From: Curt Shaffer <mailto:cshaffer at gmail.com>  

To: cisco-voip at puck.nether.net 

Sent: Saturday, November 24, 2007 2:46 PM

Subject: [cisco-voip] phones getting IP from data VLAN

 

I have a series of phones on the network that seem to keep getting an IP
from the data VLAN DHCP server. All of my switch ports are configured the
same. It's just some work and some don't. I have searched docs and the web
about this and found that there are some issues with older firmware but the
thing is that I have phones that did this at first and work fine now and
some phones worked fine at first and now do this. It's really quite odd. Has
anyone seen such an issue or got any advice? I'm not onsite so I can't
easily span the port and grab a capture today. DCHP is coming from the CME
router just FYI.

 

Here are the specs:

 

Phone models:

 

7940 and 7960

 

Version :

P0030301MFG2

 

Switch IOS (x2):

 

Cisco IOS Software, C3560 Software (C3560-IPBASE-M), Version 12.2(35)SE5,
RELEASE SOFTWARE (fc1)

 

Router IOS:

 

Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version
12.4(15)T1,RELEASE SOFTWARE (fc2)

 

Thanks

 

Curt


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