Having a little trouble with configuring a watchguard firebox II, I also have a firebox 700, but see little difference between the 2 and will probably sell off the 700 as it is worth more.
The problem is I have configured the network interfaces on seperate networks - trusted interface - 192.168.0.1 - Optional Interface - 192.168.1.1 the external is set by DHCP. I have configured seperate HTTP Proxies for 2 types of access, limited and full access to the internet (trusted), Set up a Web server and FTP (optional) and this all seems to ok, the problem I am having is getting the optional and trusted interfaces to communicate, the servers on the optional cannot log into or see the network, I temporarily can around this by adding a 2nd Nic in the 3 public servers and assigning them trusted IP's, but I am sure there is a way to allow communications between my trusted and optional interfaces so files can be shared and websites developed etc, I just can't seem to get the 2 to communicate through the firebox.
I would also if possible if other than the mild CPU speed difference the benifits of the FBIII 700 and the Firebox II.
Once this part is done I am on to an exchange sever question I have regarding this network as well.
Thanks in advance.