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-rw-r--r--epan/dissectors/packet-icmp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/epan/dissectors/packet-icmp.c b/epan/dissectors/packet-icmp.c
index 77b3eb3ddd..eb0522bb3c 100644
--- a/epan/dissectors/packet-icmp.c
+++ b/epan/dissectors/packet-icmp.c
@@ -1065,6 +1065,8 @@ dissect_icmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
if ( icmp_type == ICMP_ECHOREPLY ) {
if ( !pinfo->in_error_pkt ) {
conv_key[0] = (guint32)tvb_get_ntohs(tvb, 2);
+ if (pinfo->flags.in_gre_pkt)
+ conv_key[0] |= 0x00010000; /* set a bit for "in GRE" */
conv_key[1] = (guint32)((tvb_get_ntohs(tvb, 4) << 16) |
tvb_get_ntohs(tvb, 6));
trans = transaction_end(pinfo, icmp_tree, conv_key);
@@ -1076,6 +1078,8 @@ dissect_icmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
tmp[0] = ~tvb_get_ntohs(tvb, 2);
tmp[1] = ~0x0800; /* The difference between echo request & reply */
conv_key[0] = ip_checksum((guint8 *)&tmp, sizeof(tmp));
+ if (pinfo->flags.in_gre_pkt)
+ conv_key[0] |= 0x00010000; /* set a bit for "in GRE" */
conv_key[1] = (guint32)((tvb_get_ntohs(tvb, 4) << 16) |
tvb_get_ntohs(tvb, 6));
trans = transaction_start(pinfo, icmp_tree, conv_key);