I changed the NIC in my OPnsense box from a quad Gbit to a dual 10Gbit card. This meant the interfaces changed - what were previously igb0/1 became ix0/1 after the change.
So I logged in on the console and ran option 1) Assign interfaces.
But this caused Unbound and ISC to be disabled and Dnsmasq to be enabled. It took a lot of faffing around to sort this out. Should this have happened? Or did I do the wrong thing when I changed the NIC? I'd like to learn from this experience...
Thanks :)
You could have change the assignment in "Interface - Assignment" in the dropdown of WAN/LAN/OPT1. It's abstracted so all of your rules would have moved as well and all services would have used the new interfaces.
But I couldn't connect to the web interface because I had no network connections - only the console.
I guess not having a management interface can make things harder.
So next time, OOB makes a change easier too.