Re: Linux IPv6 DAD not full conform to RFC 4862 ?

In article [ref] (at Wed, 9 Jan 2008 16:36:56 +0100), Karsten Keil [off-list ref] says:

So I think we should disable the interface now, if DAD fails on a
hardware based LLA.

I don't want to do this, at least, unconditionally.

Options (not exclusive):

- we could have "enable_ipv6" interface flag and check it in
  input/output paths
- we could have "dad_reaction" interface variable and
 > 1: disable interface
 = 1: disable IPv6
 < 0: ignore (as we do now)

--yoshfuji