netdev - Re: bonding and IPv6 "doesn't work"?

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Message-ID: <20110712161455.GD909183@jupiter.n2.diac24.net>
Date:	Tue, 12 Jul 2011 18:14:56 +0200
From:	David Lamparter <equinox@...c24.net>
To:	Tomasz Chmielewski <mangoo@...g.org>
Cc:	netdev@...r.kernel.org
Subject: Re: bonding and IPv6 "doesn't work"?

On Tue, Jul 12, 2011 at 06:05:41PM +0200, Tomasz Chmielewski wrote:
> I make a bond0 of two interfaces, eth0 and eth1.

What kind of device do you have on the other side of those links?

> bond0: IPv6 duplicate address 2a01:4f8:120:14c4::1247 detected!
[...]
> However if I start bonding with just one interface, add IPv6 address to 
> it, then use ifenslave to add a second interface, I'm able to reach the 
> hosts in the internet.

Yeah, when you add the IPv6 address, IPv6 ND does its job and announces
your presence/does DAD. Your bonding peer is probably looping those
packets back on the other link, most likely because...

> Bonding Mode: load balancing (round-robin)

... most likely because you maybe have a switch on the other side, and
that switch expects you to do 802.3ad?

Just guessing,

-David
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