Greetings from Red Cross Germany!
We use OpenSense as our Main Internet and VPN Gateway.
I have two Problems:
1) Recently we had our Telekom provider tell us that they got a registration request (PPPoe) from our Vodafone Modem/routers.
2) It seems like when one of our gateways die/go offline it always brings the others down too.
We have 8 seperate LAN Ports on our OpenSense and all of our 6 Internet Modems are on seperate LAN Ports, the other ones are WAN into our switch and Wi-Fi Controllers.
Does this above make sense or is it some kind of bad configration?
Maybe better to bring in some more details, graphically...
Draw some schematics to make things more plausible and describe the configurations/interfaces you have in OPNsense.