I'm pulling my hair out. I have a fedora box (serv1) that is my network
management hub. It has a physical interface with no address, and a
series of vlans configured (via NetworkManager).
This is plugged into a netgear switch that sends vlan tagged packets to
serv1. This works great. (side
I think I'm convinced it's a hardware problem with the ethernet port on
serv2 (the NUC box). Manually forcing the arp entries on both sides
didn't fix it, so it wasn't just an arp problem.
Reconfiguring all the vlans to use the other physical interface on the
NUC (eno1) makes everything work.
