I'm having a problem with DNS queries from a domain controller in one site to a DC in another...
Site 1...2003 Server R2, Domain controller hosting all FSMO roles. IP 192.168.0.12, using Root Hints to resolve external requests (No ISP listed in forwarders).
Site 2...2000 Server, Domain Controller IP 192.168.1.1, using Root hints.
From either site, I am unable to successfully query the other server. The two sites are connected via dedicated link. There are no restrictions on traffic in place. I can successfully ping each server and there are no routing issues. I can successfully telnet to/from port 53 from both servers to each other. I tried increasing the timeout on nslookup but this did not help. What could the problem be?