This one fell through the cracks... On Sat, Aug 12 2017, Florian Obser <[email protected]> wrote: > Stop supporting prefix lifetimes that decrement in real time. > It complicates the code, it's off by default and RFC 4861 section > 6.2.1 lists it as MAY. > After this we can stop regenerating the RA packets everytime we send > them.
I don't think regenerating the RA every time is a big problem, even though I looked into this at some point. > Also I'm not convinced that this has a use case. I think it > comes from a fairy tale where renumbering is easy. Easy renumbering looks like a laudable goal to me. > Considering the two hour rule in RFC 4862 this might not actually > work to begin with... I can't do proper checks right now, but I think that this feature + the rules described in 5.5.3.e are compatible. Preferred lifetime is not affected by these rules. For valid lifetime, it seems that it will be maintained at 2hours, as long as routers keep announcing the prefix. Which appears to be compatible with renumbering. > OK? I'd prefer that we keep this code. -- jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE
