I currently have a 10.100.0.x network for my data and all our VoIP stuff is on 192.168.0.x. Currently we have two Juniper SSG-140 for each. I would like to switch us over to a single SonicWALL NSA 3500. I have worked a lot with SonicWALL but my question is, if I put both on different interfaces and keep the same networks would I be able to communicate between the networks if I configured the firewall rules correctly?
What would I use for the default gateway on both sides?