On 2016/09/02 10:37, Florian Obser wrote: > Our kernel based rtsol code is like this little child. We bring up > the interface, send our first solicitation and get an advertisment > back with a pltime of a week or so. > > We lean back, quite happy that we can do v6 now, but after 60 seconds > we wake up, oh shit, better check if that prefix is still valid. and > so on and on. > > This is particularly annoying if you try to debug ICMPv6 with tcpdump > in a network with a lot of openbsd machines. > > To stop naddy from pestering me about this at every hackathon (rightly > so!), let's base the timeout on the prefixes pltime. ;) > > OK?
I agree with doing this, but I think this makes it more important that we do something to expire old prefixes when changing networks (i.e. change of link state).