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Date: Mon, 19 Mar 2007 14:28:52 +0000
From: Bruce M Simpson <bms@incunabulum.net>
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Subject: Interface index hack in IP_ADD_MEMBERSHIP
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Hi,

I plan to get rid of the ugly little ip_multicast_if() hack in the IP 
stack.=
Before I do, is anyone actually using this?

RFC 3678 specifies a protocol independent API for socket group 
memberships which allow joins on interfaces referenced by index. This is 
intended to support IGMPv3 and MLDv2.

Regards,
BMS