netdev - [IPv6] interface-local multicast escapes the local node

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Message-ID: <20130206084949.GA11193@eerihug-hybrid.ki.sw.ericsson.se>
Date:	Wed, 6 Feb 2013 09:49:49 +0100
From:	Erik Hugne <erik.hugne@...csson.com>
To:	netdev@...r.kernel.org
Subject: [IPv6] interface-local multicast escapes the local node

It seems that packets sent to interface-local scoped multicast
addresses (ff01::/16) escape out on the network.
According to RFC4291 (section 2.7):
    Interface-Local scope spans only a single interface on a node
    and is useful only for loopback transmission of multicast.

Example program here:
https://gist.github.com/Hugne/4721151

//E
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