I have a laptop that I'm using to connect to our office via VPN. We use
Astaro Security Gateway hardware at the office and the Astaro Secure
Client VPN software on the laptop. After establishing a VPN connection I
am able to ping all the servers behind the firewall and can access the
Windows Server, but I can't log into the Netware 6 server. The Novell
Client software can't ever find the tree. The laptop will resolve netbios
names locally.

Anybody have any experience with this sort of thing? So far the best
thing I've found is that the firewall my be block SLP.