I currently has 2 standard routers plugged into LAN ports of a Sonicwall TZ-190W.
They have static LAN IP's setup for their WAN's. The sub-networks work just fine being double NAT. Problem is the networks can talk to each other. Is there a way to separate the networks like with a VLAN.
There is not much you can change in the router. I was looking for rules that could be created in the firewall. Or perhaps modifying the routing rules of the Sonicwall gateway device.
The firewall also has an OPT port and 1-2-1 translation. Was not able to get them to work. I understand that the "W" model does not support the use of the OPT interface. I have disabled the wireless feature of the router. It did not help.
Thank you for any direction or answers you can provide. Much appreciated :-)