@DustinB3403 said in VyOS - Best practices and questions:

I think BGP has to do intricately with the OP, just because I wasn't aware of BGP as the technology used, doesn't mean it wasn't what I was trying to figure out.

It's literally the last question in the OP, what do you do if you lose the physical interface for fail over. Answer: Use BGP.

uh - no. That assumes the ISP is what failed, not the NIC that failed on the firewall. Those are two different things.