>For what it's worth, I experienced the same problem caused by

 >attaching and detaching a (short) crossover cable multiple times

 >on a vr interface in
The cable used in the situation when things went wrong

was also short, < 1m.
 >soekris net5501 running 4.1-stable. As it was on a production

 >firewall I didn't troubleshoot much, tcpdump didn't show any incoming

 >traffic on that
OK, same phenomenon.
 >interface - then I went for a quick reboot that obviously fixed

 >things. Let me see if I can replicate it in lab.
That would be very nice - unfortunately, I don't have any spare

Soekris 5501 boxes.