I've had a simple Untangle setup working for almost 2 years. External goes to the Internet, while Internal handles the 192.168.0.x network. It's been working great, and I couldn't be happier! However, I'm running out of space on the single subnet.
I just added a dual NIC to the server, which created DMZ (eth2) and eth3. I want one new port to be for a second internal network -- 192.168.1.x -- while the other port will be for public (wired/wireless) use -- 192.168.102.x. Right now, DHCP is not an issue.
I want the 192.168.1.x network to see/browse the old 192.168.0.x, and vice versa. The 192.168.102.x network should only get to the Internet and be partially filtered.
How to I configure all of this?