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-rw-r--r--net/ipv6/addrconf.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c02280a4d12..6b8ebc5da0e 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;
}