From d6ddef9e641d1229d4ec841dc75ae703171c3e92 Mon Sep 17 00:00:00 2001 From: Li Wei Date: Mon, 5 Mar 2012 14:45:17 +0000 Subject: IPv6: Fix not join all-router mcast group when forwarding set. When forwarding was set and a new net device is register, we need add this device to the all-router mcast group. Signed-off-by: Li Wei Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'net/ipv6/addrconf.c') diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index c02280a4d126..6b8ebc5da0e1 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -434,6 +434,10 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) /* Join all-node multicast group */ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes); + /* Join all-router multicast group if forwarding is set */ + if (ndev->cnf.forwarding && dev && (dev->flags & IFF_MULTICAST)) + ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters); + return ndev; } -- cgit v1.2.3-59-g8ed1b