IPv6 broken on Fedora 20?

Hannes Frederic Sowa hannes at stressinduktion.org
Tue Jan 7 12:11:40 CET 2014

On Thu, Dec 19, 2013 at 07:14:24PM +0100, Hannes Frederic Sowa wrote:
> > Once you're doing that, it's probably easier to handle L=1 by simply
> > adding the on-link route directly, rather than adding the address as a
> > /64 and relying on the kernel to add the route for you. The two should
> > result in the same functionality, though, so I'm don't really understand
> > what's actually broken here.
> I guess it breaks generation of privacy addresses.

It also had some affect of anycast address generation.

> But you are right, essentially it should work but some assumptions were
> made in the kernel which should have been checked first.

I guess they're switching back to 64 while suppressing automatically addding
prefix routes:


This feature should also be available in iproute then.



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