<div>If you are dot1q trunking to the phone, try setting the native VLAN on the trunk to the phone that you would like it to DHCP from. This worked to fix bugs on older 3524XL switches. I am sure you have tried this but, have you erased the phone configurationson the phones (option 33)? Good luck.</div> <div> </div> <div>Peter<BR><BR><B><I>James Grace <jgrace@digitelusa.net></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">What I notice also, is the these phone are getting address from the data<BR>remote dhcp server. But when you look at the setting on the phone it has<BR>the correct vlan id <BR><BR>-----Original Message-----<BR>From: Jonathan Charles [mailto:jonvoip@gmail.com] <BR>Sent: Friday, June 23, 2006 11:05 PM<BR>To: Ted Nugent<BR>Cc: Wydra, Jason; James Grace; cisco-voip@puck.nether.net<BR>Subject: Re: [cisco-voip] 7940 7960 wont grab ip from dhcp off
switch<BR><BR>Another fun thing is if there is a rogue VLAN sitting in the vlan<BR>database...<BR><BR>Do a show vlan and see if there are VLANs on the switch that don't<BR>make sense to you... if so, go into VLAN database and delete them...<BR><BR>Also, note the fact that you CANNOT configure a 3550, 3560 or 3570 to<BR>have a voice vlan and configured as a trunk port... the voice vlan is<BR>ignored...<BR><BR><BR><BR>Jonathan<BR><BR>On 6/23/06, Ted Nugent <TEDNUGENT69@YAHOO.COM>wrote:<BR>> Another Problem I've seen that could be contributing<BR>> to this is if you set the access vlan and voice vlan<BR>> the same. (I think it's a bug but have not<BR>> investigated it).<BR>> sw acces vlan 4<BR>> sw voice vlan 4<BR>> Changing to a different access vlan typically fixes<BR>> this. Also mokeying with the DHCP properties have<BR>> caused the same problem and simply changing the access<BR>> vlan to to something else and changing it back<BR>>
resolves the problem. You may need to down the sw port<BR>> to get this to take.<BR>><BR>><BR>> --- "Wydra, Jason" <JWYDRA@BURWOOD.COM>wrote:<BR>><BR>> > Are you doing true trunking (encap dot1q) on these<BR>> > ports or are you<BR>> > doing an access vlan and voice vlan?<BR>> ><BR>> > -----Original Message-----<BR>> > From: cisco-voip-bounces@puck.nether.net<BR>> > [mailto:cisco-voip-bounces@puck.nether.net] On<BR>> > Behalf Of Jonathan<BR>> > Charles<BR>> > Sent: Friday, June 23, 2006 9:39 PM<BR>> > To: James Grace<BR>> > Cc: cisco-voip@puck.nether.net<BR>> > Subject: Re: [cisco-voip] 7940 7960 wont grab ip<BR>> > from dhcp off switch<BR>> ><BR>> > Do they show up in a 'show cdp neighbors'? If not,<BR>> > you may want to<BR>> > enable CDP so the phones can see the voice vlan.<BR>> ><BR>> ><BR>> > Jonathan<BR>> ><BR>> >
On 6/23/06, James Grace <JGRACE@DIGITELUSA.NET><BR>> > wrote:<BR>> > ><BR>> > ><BR>> > ><BR>> > ><BR>> > > We have a 3750 with dhcp scope config on it. We<BR>> > have all type of<BR>> > phone and<BR>> > > wireless ap (cisco) that are pulling from this<BR>> > scope. But for some<BR>> > reason<BR>> > > the 7940s and 7960s are grabing ip from the data<BR>> > remote dhcp server.<BR>> > The<BR>> > > switch is not recognizing these phones<BR>> > ><BR>> > ><BR>> > ><BR>> > > James D. Grace<BR>> > ><BR>> > > CCNP CCNA MCSE MCDBA<BR>> > ><BR>> > > Sr. System Engineer / Professional Svc.<BR>> > ><BR>> > > Digitel Corporation<BR>> > ><BR>> > ><BR>> > > _______________________________________________<BR>> > > cisco-voip mailing list<BR>> >
> cisco-voip@puck.nether.net<BR>> > ><BR>> > https://puck.nether.net/mailman/listinfo/cisco-voip<BR>> > ><BR>> > ><BR>> > ><BR>> > _______________________________________________<BR>> > cisco-voip mailing list<BR>> > cisco-voip@puck.nether.net<BR>> > https://puck.nether.net/mailman/listinfo/cisco-voip<BR>> ><BR>> ><BR>> > _______________________________________________<BR>> > cisco-voip mailing list<BR>> > cisco-voip@puck.nether.net<BR>> > https://puck.nether.net/mailman/listinfo/cisco-voip<BR>> ><BR>><BR>><BR>> __________________________________________________<BR>> Do You Yahoo!?<BR>> Tired of spam? Yahoo! Mail has the best spam protection around<BR>> http://mail.yahoo.com<BR>><BR>---<BR><BR><BR><BR>---<BR><BR><BR>_______________________________________________<BR>cisco-voip mailing
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