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-rw-r--r--sys/netinet/udp_usrreq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c
index 09b5c96..81ad55f 100644
--- a/sys/netinet/udp_usrreq.c
+++ b/sys/netinet/udp_usrreq.c
@@ -358,6 +358,7 @@ udp_input(m, off, proto)
goto bad;
if (blackhole)
goto bad;
+ HTONS(ip->ip_id);
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PORT, 0, 0);
return;
}
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