I am configuring a SonicWALL NSA 2400 firewall with SonicOS Enhanced 5.x. Everything works just great except for one problem: the webserver on our DMZ needs to access a db server on the LAN, and simply will not do so.
I've followed all instructions, double-checked all entries, and attempted to work with SonicWALL support (they were completely stumped).
We have a single T1 static IP address, so the DMZ is NATted.
I'm missing something. But what?
P.S. The client wants to replace IPCop, which is working perfectly except for the fact that it won't do T1 failover or load balancing.