Does radv protocol (re)scan interfaces on IPv6?

[Ondrej Zajicek]

On Tue, Sep 02, 2014 at 08:22:11PM +0100, Alex Bligh wrote:
> 
> On 2 Sep 2014, at 12:52, Ondrej Zajicek <santiago at crfreenet.org> wrote:
> 
> > This should work. Could you check whether 'evrradv: Adding interface XXX'
> > log message is logged if you enable debug messages for evrradv?
> 
> We've managed to find the cause of the problem, which is deeply strange.
> We were disabling duplicate address detection after setting the link up.
> If we move this to disabling DAD before setting the link up, the problem
> does not arise. Note that this is just *detection* - it wasn't actually
> discovering a duplicate address or anything.

Yes, i suspected something like that. Generally, when the interface is
created or bringed up, link-local address is automatically assigned, but
it is marked as tentative, which BIRD ignores. We should probably wait
until the the tentative flag for link-local address is removed. I think
it probably tries to bind a socket on that tentative address, which fails
(although that should be logged).

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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