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-rw-r--r--net/ipv6/sit.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index d6bfaec..8c4d00c 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -606,8 +606,9 @@ static int ipip6_rcv(struct sk_buff *skb)
return 0;
}
- icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+ /* no tunnel matched, let upstream know, ipsec may handle it */
rcu_read_unlock();
+ return 1;
out:
kfree_skb(skb);
return 0;