Here's the scenario, I have 3 IX-12IPKTD-E IP Phones that were previously setup on our corporate network. Recently, these three users moved to a remote office. I setup a site-to-site VPN using Cisco ASA 5500 series firewalls. At the remote site, all internal devices work correctly.

My issue is, the IP phones do not process the DHCP information handed out by my firewall. They sit at the "Waiting for response from DHCP Server" screen. I have verified on the ASA that the address is being handed out and that the correct MAC address of the phone is listed. So, it's as if the ASA is returning the config info, but the phone is not accepting it.

Any ideas? Thanks.