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).

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