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-rw-r--r--epan/ipproto.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/epan/ipproto.h b/epan/ipproto.h
index 8d32cb3a53..2447383fc0 100644
--- a/epan/ipproto.h
+++ b/epan/ipproto.h
@@ -28,6 +28,7 @@
/*
* IP protocol numbers.
+ * http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xml
*/
#define IP_PROTO_IP 0 /* dummy for IP */
#define IP_PROTO_HOPOPTS 0 /* IP6 hop-by-hop options - RFC1883 */