Question : ping does not work unless IP address is used

Hello guys,

I have 2 networks one in NY and one in CA, NY Network is on subnet 192.168.0.0 and the CA Network is on subnet 192.168.1.0. Each network is behind a Sonicwall Firewall and both networks are linked together by the firewalls.

Both networks have their own Domain, those Domains are NOT part of the same forest, they are independent of each other. Problem is that if I am in the NY network I am not able to ping a server by name at the CA Network, however I am able to ping that server using the ip address, the same problem occurs if I am at the CA Network and want to ping a server at the NY by name, it does not work, I can only ping it by ip address.

Both Networks have 1 Domain Controller Server which of course has DNS server running.

Is there a way to fix the problem? Goal is to be able to ping by name.

Answer : ping does not work unless IP address is used

Have you set up forwarders on each DNS so that it know where to forward queries to the other domain?

E.g. In on dns.domain1.com on the DNS console, right click the server ? Properties > Forwarders. Add the other domain DNS name, e.g. domain2.com and specify the IP address of the DNS server in domain2.com. (and visa versa on the other server).

If you're still having problems, like gtworek says, check that port 53 is not being blocked. Try this -

From the DNS server in domain1, try the command:

telnet [IP of DNS server in domain2] 53 (example : telnet 192.168.0.10 53)

If you get a blank screen appear then the port is open. If you get an 'connection failed' message and no blank screen then port is being blocked.