X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fplugins%2Fmap%2Fip4_map_t.c;h=bb5aa451bc532b0ea6487bce6c5c4cef50c1acba;hb=56817e2c486a26167783676774b0dea9c103b200;hp=d243a45cd417120320ab5284115946ad1b15bbdb;hpb=78b58f65f1c94d7a5efbf191b4a6e8b6cc12ae66;p=vpp.git

diff --git a/src/plugins/map/ip4_map_t.c b/src/plugins/map/ip4_map_t.c
index d243a45cd41..bb5aa451bc5 100644
--- a/src/plugins/map/ip4_map_t.c
+++ b/src/plugins/map/ip4_map_t.c
@@ -578,6 +578,16 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
 
 	  dst_port0 = -1;
 
+	  if (PREDICT_FALSE (ip40->ttl == 1))
+	    {
+	      icmp4_error_set_vnet_buffer (p0, ICMP4_time_exceeded,
+					   ICMP4_time_exceeded_ttl_exceeded_in_transit,
+					   0);
+	      p0->error = error_node->errors[MAP_ERROR_TIME_EXCEEDED];
+	      next0 = IP4_MAPT_NEXT_ICMP_ERROR;
+	      goto trace;
+	    }
+
 	  bool df0 =
 	    ip40->flags_and_fragment_offset &
 	    clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT);