On Mittwoch 29 April 2009 20:51:38 Juliusz Chroboczek wrote: > > Theoretically two nodes in "two-hop" range might get the same linklocal > > IP, because they don't share a link, but the node between them would be > > in trouble. > > Yep. A possible workaround would be to assign random IPv6 interface-ids > to the interfaces. (There's 62 bits of randomness in a locally-assigned > interface-id, which should be unique enough unless /dev/random is very > badly broken.) Think about routers without internal clock... after a large scale power outage. Not much randomness until you switch on the network cards. ;)
> The downside is that you'll end up with interface-ids that don't stick > across a reboot, but that's the price you pay for dodgy hardware. Yep... there is no free lunch. > Have you actually run into that issue (truly curious)? In case you > have, running this on the guilty interfaces just after they've been > ifupped should fix it (untested): There are not many IPv6 OLSR networks because many firmware images don't even contain IPv6 support :( Henning
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