netdev - [PATCH] man page update (ip.7) to reflect new socket option in 2.6.31

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Date:	Fri, 19 Jun 2009 00:02:21 -0700
From:	Nivedita Singhvi <niv@...ibm.com>
To:	netdev <netdev@...r.kernel.org>, mtk.manpages@...il.com
CC:	linux-man@...r.kernel.org
Subject: [PATCH] man page update (ip.7) to reflect new socket option in 2.6.31

This patch adds the IP_MULTICAST_ALL option to
the ip.7 man page, to bring it up to date with
2.6.31 development.


Signed-off-by: Nivedita Singhvi <niv@...ibm.com>

---
  man7/ip.7 |   10 +++++++++-
  1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/man7/ip.7 b/man7/ip.7
index ab866a1..6932ba2 100644
--- a/man7/ip.7
+++ b/man7/ip.7
@@ -357,7 +357,6 @@ and retrieve the MTU by calling
  with the
  .B IP_MTU
  option.
-
  It is possible to implement RFC 4821 MTU probing with
  .B SOCK_DGRAM
  or
@@ -383,6 +382,15 @@ When an invalid socket option is passed,
  .B ENOPROTOOPT
  is returned.
  .TP
+.BR IP_MULTICAST_ALL " (since Linux 2.6.30)"
+Sets the multicast delivery policy to the socket.  Argument is a boolean
+integer that enables or disables multicast delivery from all groups.
+If not set, delivery to the socket is restricted to data from those multicast
+groups that have been explicitly subscribed to via a multicast join operation
+for this socket. The default is 1 which means that a socket which is bound
+to the wildcard address (INADDR_ANY) will receive multicast packets from all
+groups that have been subscribed to on this system.
+.TP
  .BR IP_MULTICAST_LOOP " (since Linux 1.2)"
  Sets or reads a boolean integer argument that determines whether
  sent multicast packets should be looped back to the local sockets.
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