From 7bdca378b2301b1fc6a95c60d6d428408ae4e39e Mon Sep 17 00:00:00 2001 From: wenxu Date: Sun, 23 Dec 2018 16:18:39 +0800 Subject: [PATCH] iptunnel: Set tun_flags in the iptunnel_metadata_reply from src ip l add tun type gretap external ip r a 10.0.0.2 encap ip id 1000 dst 172.168.0.2 key dev tun ip a a 10.0.0.1/24 dev tun The peer arp request to 10.0.0.1 with tunnel_id, but the arp reply only set the tun_id but not the tun_flags with TUNNEL_KEY. The arp reply packet don't contain tun_id field. Signed-off-by: wenxu Signed-off-by: David S. Miller --- net/ipv4/ip_tunnel_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c index c248e0dccbe1..43f519c9b318 100644 --- a/net/ipv4/ip_tunnel_core.c +++ b/net/ipv4/ip_tunnel_core.c @@ -151,6 +151,7 @@ struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md, sizeof(struct in6_addr)); else dst->key.u.ipv4.dst = src->key.u.ipv4.src; + dst->key.tun_flags = src->key.tun_flags; dst->mode = src->mode | IP_TUNNEL_INFO_TX; return res; -- 2.30.2