Is it possible to have two seperate networks (seperated by IP addresses and subnet) under one gateway + firewall that is within IP and subnet configuration is on network #1 and still filter inbounding/outbounding traffic to/from network #2?
Gateway + Firewall (m0n0wall software) has internal address 192.168.0.100 with subnet 255.255.255.0
- Computers have addresses 192.168.0.x with same subnet /24
- Some devices, are on 192.168.1.x with subnet /24
Internally, from computer with address 192.168.1.Y i can access device, ofcourse.
Question is - is it possible to forward some ports from external IP (out of office) to device with IP 192.168.1.X? Will it work if firewall is on "different network"?
So far i have
- Forwarded port 443 to 192.168.1.X:443
- Set up firewall rule to fully trust all ports inbound & outbound to my external IP address.
While trying to connect to Office external IP, port 443
- In browser i get
- In office firewall logfile i see that Out of office external IP, port 1560 allowed to 192.168.1.104, port 443 TCP
- Sometimes I also see Out of office external IP, port 1560 denied to Office external IP, port 443 TCP
- I don't see any answer from 192.168.1.X in logfile.
If i map 443 to address 192.168.0.X, everything is OK.
What is the problem and how to solve this please?
My suspect is that firewall is not on same subnet. What if i lower subnet number to 255.255.0.0 for firewall to include both networks - will it not break the whole network?