[ILUG] ARP Insanity - The End... or is it?

[Nick Murtagh]

Paul Jakma wrote:
> Be interesting to see if this goes away when/if you reboot A.

Ok, so I tried messing with ebtables to see if I could make the spurious
ARP responses go away.

I ran a brctl command that killed networking on the server :(

That'll teach me to try new stuff on a production server :o

At this point the spurious ARP responses went away!

We got the server rebooted (it's in a colo).

When the server came back up, it brought up an interface with the "IP
address of evil". But this time,

   ifconfig eth0:2 down

worked properly, and the server no longer responds to ARP requests for
that IP!

Which means it's a kernel bug I guess :(


Thanks to Colm, Paul, Owen and Tomek for all the help and suggestions!