DNS problem across subnets

I recently setup a remote site which is connected to our main location with
a dedicated T1. We setup the new site with its own subnet which is
different than the main site. The networks are talking and I can ping
resources across both networks. However, I don't think internal DNS is
working.

When I am on the remote subnet, I can't map a drive to a server on the
primary network subnet.

What are some things I can look for to make sure everything is configured
across the 2 subnets.

My network is a very basic, Windows 2003 Server AD. The internal DNS server
is setup on the Windows 2003 server.

Hi Woodberg,

I have a theory that it's actually the Windows Firewall (on the client)
blocking this. The default rule prevents File Sharing access on subnets
outside of the local one.

We shoudl check Name Resolution though. If you open up the command prompt
and run nslookup or ping for the server name, does it resolve? If it gives
you an IP DNS is done and can be ruled out as the cause.

--
Chris Dent
MVP Directory Services


"Woodberg" <> wrote in message
news1AAFDC7-B952-49F1-B1FD-...
>I recently setup a remote site which is connected to our main location with
>a dedicated T1. We setup the new site with its own subnet which is
>different than the main site. The networks are talking and I can ping
>resources across both networks. However, I don't think internal DNS is
>working.
>
> When I am on the remote subnet, I can't map a drive to a server on the
> primary network subnet.
>
> What are some things I can look for to make sure everything is configured
> across the 2 subnets.
>
> My network is a very basic, Windows 2003 Server AD. The internal DNS
> server is setup on the Windows 2003 server.

"Woodberg" <> wrote in message
news1AAFDC7-B952-49F1-B1FD-...
>I recently setup a remote site which is connected to our main location with
>a dedicated T1. We setup the new site with its own subnet which is
>different than the main site. The networks are talking and I can ping
>resources across both networks. However, I don't think internal DNS is
>working.
>
> When I am on the remote subnet, I can't map a drive to a server on the
> primary network subnet.
>
> What are some things I can look for to make sure everything is configured
> across the 2 subnets.
>
> My network is a very basic, Windows 2003 Server AD. The internal DNS
> server is setup on the Windows 2003 server.

Chris' theory of firewalls is almost certainly correct.

It can be any of the firewalls on the client, server or between them.

On the Windows server go to Firewall,Exceptions. Hilight File & Printer Sharing, Select Edit, Change Scope. Select "Any Computer". That should fix your problem.