I have a Watchguard 750e (recently installed). I am attempting to use a Cisco VPN client to connect to a remote site. Problem is that once connected, I am unable to access any network services on the remote site. There are no error messages on the firewall to indicate a deny, and I have run a packet scanner on the internal machine and everything looks good here as well. I do not have access to the remote concentrator or configuration.
I have enabled the following ports to allow through the firewall: TCP 50, TCP 51, UDP 500, UDP 4500 and TCP 10000. This connection is using NAT/PAT (as they all do).
Now, here is the interesting thing, I can connect to <some> Cisco VPN's this way, and have no problems, there are only a couple of them that show this behavior. Any ideas? Watchguard tech support really stinks.
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