Oh for fucks sake. 2 work days spent trying to fix a network issue. Eventually fixed by writing "2" to a file in /proc. Fnnnggh
@kramse how did you guess.
Yep.
@quixoticgeek because it is one of the worst and most annoying crap in the Linux kernel
With the time outs and life times it also is hard to diagnose
Good news is you will never forget it
@kramse 25 years as a sysadmin and it's the first time I've had to dive into that bit of arp. Am actually pleased at the quality of documentation for it out there.
@quixoticgeek some things appear only rarely
I found out one odd day that a DNS server responded to DNS queries on the broadcast address! It was OpenBSD, and apparently according to spec.
@kramse now to work out why Linux bridge is doing what it's doing. It works. It does what I want it to do. It's just... I've not configured it yet, so it shouldn't work.
@quixoticgeek ARP responding on wrong interface?
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