[cisco-voip] trying to setup dhcp scope for iphones on dc

[Lelio Fulgenzi]

Is this a new install? i.e., have the phones got an IP address from a DHCP server before? If new, and your DHCP server is not on the same broadcast domain as the phones, you have to put an 'ip helper address' or similar on the router interface. If this is an additional DHCP server, I remember that Windows wants all DHCP servers to be registered with each other or something like that. If the phones already had an IP address, they will try to 'renew' the existing IP address, so you'll have to make sure that that scope no longer exists.

If you can give us some more details, that would help.

  ----- Original Message ----- 
  From: James Grace 
  To: cisco-voip at puck.nether.net 
  Sent: Sunday, March 26, 2006 10:16 PM
  Subject: [cisco-voip] trying to setup dhcp scope for iphones on dc


  Is there trick to get the ip phone to grab a ip address from the dhcp server.  We have a dc which is a dhcp server for our data.  And we are configuring another scope for the ip phones.  But phones are not grabing a ip.  We have the ip helper config under the voice vlan int.   what else are we missing.

   

  James D. Grace 

  CCNP CCNA MCSE MCDBA

  Sr. System Engineer / Professional Svc.

  Digitel Corporation

   



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