netdev - [PATCH] [IPv6]: IPV6_MULTICAST_IF setting is ignored on link-local connect()

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Date:	Tue, 18 Dec 2007 15:57:54 -0500
From:	Brian Haley <brian.haley@...com>
To:	David Miller <davem@...emloft.net>,
	YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>,
	David Stevens <dlstevens@...ibm.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH] [IPv6]: IPV6_MULTICAST_IF setting is ignored on link-local
 connect()

Trying to connect() to an IPv6 link-local multicast address by
specifying the outgoing multicast interface doesn't work, you have to
bind to a device first with an SO_BINDTODEVICE setsockopt() call.  This
patch allows the IPV6_MULTICAST_IF setting to also control which
interface should be used for the connection, as specified in RFC 3493.

Signed-off-by: Brian Haley <brian.haley@...com>
---

View attachment "mcast_oif.patch" of type "text/x-patch" (645 bytes)