netdev - Re: [IPv6] "sendmsg: invalid argument" to multicast group after some time

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Message-ID: <20080901090959.GA6621@schleppi.birkenwald.de>
Date:	Mon, 1 Sep 2008 11:09:59 +0200
From:	Bernhard Schmidt <berni@...kenwald.de>
To:	David Stevens <dlstevens@...ibm.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [IPv6] "sendmsg: invalid argument" to multicast group after
	some time

On Sun, Aug 31, 2008 at 10:49:50PM -0700, David Stevens wrote:

Hello David,

> My wild guess is that you have lost the multicast bit on
> the interface, by a daemon that is just setting the interface
> flags rather than doing get/or in new/set.
> 
> When it's failing, you might try looking at the interface
> flags to see if IFF_MULTICAST is still there.

It is. miredo isn't doing anything with the eth0 interface, and I can
still reach other multicast groups on te same interface.

Bernhard
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