[futures]

IP390 (4 ports) running NGX R61.

I am by no means a CP expert, and so may be missing something very simple here.

However, when this box was set up, we had the ports as follows:

Port 1 - LAN
Port 2 - DMZ
Port 3 - Internet
Port 4 - Spare

We have since had the need to configure the 4th port for a second LAN, so we now have:

Port 1 - LAN 1
Port 2 - DMZ
Port 3 - Internet
Port 4 - LAN 2

We need certain traffic to go between LAN 1 and LAN 2 and for both LANs to access the internet.

I have set up rules in SmartDashboard, and traffic is indeed functioning fine between LAN 1 and LAN 2. However, for some reason, I cannot for the life of me get Port 4 (LAN 2) to access the internet (on Port 3).

I have set up the rules, checked, double checked and trashed and started again, but can still not get this to function.

I assume (maybe wrongly) that because LAN 1 and LAN 2 can communicate, that the port is configured correctly, in which case I am puzzled as to why LAN 2 cannot access the internet.

I have watched in SmartView Tracker and there are no blocks happening. In fact you see the DNS request (when you try and hit a website) being allowed (so it can go off to the internet and resolve the address), but nothing else. DNS times out eventually, and nothing else ever shows in the Tracker.

Can anyone offer any suggestions on what might be the cause, or what direction to look in.

Thank you in advance.