WAN to LAN traffic not working

[Crab]

I believe there is an issue with WAN to LAN traffic using PRIVATE IP addresses and is documented in the thread link below.

The issue appears to be related to NAT shut off and using PRIVATE IP addresses. However, this is a guess.

Turning off the firewall results in everything working fine. So the routing and PC setup, network addresses are all fine.

Enabling the firewall, permitting all traffic from WAN and LAN side allows LAN to WAN communication.
WAN to LAN communication is blocked.. it should be allowed.
All NAT is disabled.

The private IP addresses should have nothing to do with the issue, unless there is a software glitch where private IPs are being blocked, even though all PRIVATE/BOGON nets are allowed on both interfaces.

This should be a simple configuration to test. This exact configuration worked about 12 months ago with a previous version of OPNsense.



https://forum.opnsense.org/index.php?topic=12018.0