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General Discussion / Re: Local LAN traffic going through WAN instead of LAN? Syncthing/immich etc
« on: August 28, 2024, 10:32:22 am »If I restore my old sophos installation instead of opnsense everything works as it should on the LAN so I know it is a setting that I am missing on opnsense somewhere.?
If you disable reflection and stop pointing things at your WAN's hostname which resolves to your WAN IP, while those services are on your LAN in fact, the LAN <-> LAN packets will flow across the switches and will not hit your OPNsense WAN - and not even LAN - at all.
The reflection hack is doing exactly what it should. You point things to WAN - they go through your router's WAN and then back to LAN. Stupid? Yes, the reflection is a stupid concept.