Hi there,
I have a VERY strange issue here. We have just split our scopes so our voice is separate from our data, we have a number of vlans/subnets and so far everything has went well. however, i have built a new network and whereas the computers get an IP and update DNS no problem, the ip phones get an ip but fail to update dns, the log below is from the dns caching servers /var/log/syslog file on the same network segment, the main master dns server on another subnet gives me nothing in any log file when this error occurs. When i reboot the phone it releases the ip then gets a new ip but fails to update dns....
Sep 8 15:30:17 dhcpdnsserver dhcpd: DHCPRELEASE of 172.17.129.30 from mac-addy (AVTE32695) via eth1 (found)
Sep 8 15:30:45 dhcpdnsserver dhcpd: DHCPDISCOVER from mac-addy via 172.17.129.2
Sep 8 15:30:46 dhcpdnsserver dhcpd: DHCPOFFER on 172.17.129.30 to mac-addy (AVTE32695) via 172.17.129.2
Sep 8 15:30:47 dhcpdnsserver dhcpd: Unable to add forward map from AVTE32695.domain.com to 172.17.129.30: not a zone
Sep 8 15:30:47 dhcpdnsserver dhcpd: DHCPREQUEST for 172.17.129.30 (172.16.129.7) from mac-addy (AVTE32695) via 172.17.129.2
Sep 8 15:30:47 dhcpdnsserver dhcpd: DHCPACK on 172.17.129.30 to mac-addy (AVTE32695) via 172.17.129.2
Sep 8 15:30:47 dhcpdnsserver dhcpd: Unable to add forward map from AVTE32695.domain.com to 172.17.129.30: not a zone
Sep 8 15:30:47 dhcpdnsserver dhcpd: DHCPREQUEST for 172.17.129.30 (172.16.129.7) from mac-addy (AVTE32695) via 172.17.129.3
Sep 8 15:30:47 dhcpdnsserver dhcpd: DHCPACK on 172.17.129.30 to mac-addy (AVTE32695) via 172.17.129.3
This is only happening on these new phone vlans, but not with computers, and all other phones on all other subnets are fine. Now i have scoured the net for this issue and can find very little, i know to look at its a complex setup, but we have it working everywhere else, all im looking for are a few pointers as to what this issue could be. Its nothing obvious, the zones DO exist, with the correct permissions, and are correctly referenced from the named.conf file.
Please help :-(