path: root/drivers/net/macvlan.c
diff options
authorstephen hemminger <>2011-11-02 12:11:53 +0000
committerDavid S. Miller <>2011-11-04 17:39:32 -0400
commit729e72a10930ef765c11a5a35031ba47f18221c4 (patch)
treeae0bcc4d1b15ce6988bd5358c4e2beb9f3b5625e /drivers/net/macvlan.c
parent5ae7fa06bb90421bc63f1f1e56ab241b49bc7b91 (diff)
macvlan: receive multicast with local address
When implementing VRRP v2 using macvlan several problems were discovered. VRRP is weird in that all routers participating in a redundant group use the same virtual MAC address. Macvlan is a natural driver to use for this but it doesn't work. The problem is that packets with a macvlan device's source address are not received. The problem is actually a regression that date back almost 2 years now. The original problems started with: commit 618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9 Author: Arnd Bergmann <> Date: Thu Nov 26 06:07:10 2009 +0000 macvlan: implement bridge, VEPA and private mode This patches restores the original 2.6.32 behavior. Allowing multicast packets received with the VRRP source address to be received. Signed-off-by: Stephen Hemminger <> Signed-off-by: David S. Miller <>
Diffstat (limited to 'drivers/net/macvlan.c')
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index a3ce3d4561ed..74134970b709 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -192,6 +192,13 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
macvlan_broadcast(skb, port, src->dev,
+ else {
+ /* forward to original port. */
+ vlan = src;
+ ret = macvlan_broadcast_one(skb, vlan, eth, 0);
+ goto out;
+ }