@stephenw10 said in Two IP's from ISP, Two PFsense routers (one a vm) cannot access B from A:
What lloks wrong is that site A has the same MAC for 24.71.68.1 and 24.71.68.91
Exactly, and site A was the one that had .91 before. So if there is some stale info in the ARP table then flushing it may fix it I suppose?
@stephenw10 said in Two IP's from ISP, Two PFsense routers (one a vm) cannot access B from A:
Edit: Good point, it could be Proxmox doing something odd. But I run that here and have never seen it do weird layer 2 stuff like that.
I agree, I use Proxmox for two firewalls in a similar setup, and I have had no trouble with vtnet or direct NIC's. Although I do have a switch on the WAN, not a router. But considering that Proxmox is the one thing that is different vs site A, I'm thinking it may be part of the problem.