Ping problem - one office can and one office can't

[maybeimaleo]

(Sorry if this is in the wrong forum)

We have two Oracle servers that are going to become production sometime down the road. My problem is this - our Chicago office (where the servers reside) are pingable but our NYC office cannot ping them at all.

From NYC:
The ping can translate the name to the IP.
The ping fails whether I try name or the ip address.
When I run nslookup <servername> it finds the name via the local DNS server.
When I run nslookup <ip address> it brings up the local DNS server but it says that it can't find an the entry - "non-existent domain".

There are other strange things going on but I'd thought I would start with these points.
Does anyone have an idea as to what else I could look for? We have an AD domain if that helps.

 

[burtsbees]

How are they connected? VPN? Frame relay? Is there a firewall at the NYC office? Can the servers in Chicago ping NYC? Can you ping NYC (assuming you're somewhere different)?

Burt

 

[maybeimaleo]

VPN.
Yes, there is a firewall but all ports are open for all devices connected to the internal network.
Yes, CHI server can ping NYC.

OK - here is another strange thing:

I cannot ping any of the servers from the cisco switch that they are connected to!

Any thoughts on that?

 

[burtsbees]

Do the NYC machines get IP addresses on the same subnet of Chicago when the tunnel is connected?

Burt