I have difficulties getting a setup with 2 WAN Gateways on OPNsense 19.7.6 to work properly. My intention was to implement a failover/loadbalance setup.
The problems began after adding the new Gateway (DSLGW) in addition to the existing Gateway (WANGW). Before that, everything worked fine for years
The current situation is:
- When both Gateways are enabled, and the new DSLGW is the active default gateway, my clients can connect to the internet.
- When I disable DSLGW, the old WANGW becomes active, but connection to the internet is lost.
- I also have NAT rules set up to proxy https traffic from the internet to a servers in my DMZ. This traffic is coming in via the WANGW.
This now only works if the new DSLGW is inactive
So I now have a setup where either the inbound (NATted) traffic via WANGW
OR the outbound internet traffic via DSLGW passes through my firewall, but not both.
Now I am now a bit lost as to where to start troubleshooting:
- I cannot see blocked packets in the Logs
- I already tried to work through the documentation on Gateways an MultiWAN
- I cannot find details on some settings like "reply-to"
- I tested tons of small changes to settings all with no positive effect
- I tried to reduce the setup as much as possible (no gateway monitoring)
Any hints please?
Thanks
Jan