vxlan: fdb: allow specifying multiple destinations for zero MAC
The zero MAC entry in the fdb is used as default destination. With
multiple default destinations it is possible to use vxlan in
environments that disable multicast on the infrastructure level, e.g.
public clouds.
Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index c182520..3e75f97 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -458,7 +458,8 @@
notify = 1;
}
if ((flags & NLM_F_APPEND) &&
- is_multicast_ether_addr(f->eth_addr)) {
+ (is_multicast_ether_addr(f->eth_addr) ||
+ is_zero_ether_addr(f->eth_addr))) {
int rc = vxlan_fdb_append(f, ip, port, vni, ifindex);
if (rc < 0)