`tcpdump -vvvi tap0`
Yep, I'll try that tonight. Gotta go now.
You bridged tap0 to your external interface, right?
No. In fact, that's the whole point - to keep HECnet traffic off of my
real Ethernet.
tap0 is connected to only two things - Johnny's bridge, and QNA-1 (xqb on
simh). QNA-0 (xq on simh) is connected to my physical Ethernet. VMS sees
both and, if necessary, routes DECnet across them.
Bob