From bec94d430f2c97159e21e38c0f1fa4da3710d5e1 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Sat, 27 Dec 2014 10:01:42 -0800 Subject: [PATCH] gre: allow live address change The GRE tap device supports Ethernet over GRE, but doesn't care about the source address of the tunnel, therefore it can be changed without bring device down. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/ipv4/ip_gre.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 4f4bf5b..942576e 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -673,6 +673,7 @@ static bool ipgre_netlink_encap_parms(struct nlattr *data[], static int gre_tap_init(struct net_device *dev) { __gre_tunnel_init(dev); + dev->priv_flags |= IFF_LIVE_ADDR_CHANGE; return ip_tunnel_init(dev); } -- 2.7.4