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-rw-r--r--inet/netinet/icmp6.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/inet/netinet/icmp6.h b/inet/netinet/icmp6.h
index 22b82335ec..151347987f 100644
--- a/inet/netinet/icmp6.h
+++ b/inet/netinet/icmp6.h
@@ -69,6 +69,8 @@ struct icmp6_hdr
 #define MLD_LISTENER_QUERY          130
 #define MLD_LISTENER_REPORT         131
 #define MLD_LISTENER_REDUCTION      132
+#define ICMPV6_EXT_ECHO_REQUEST	    160
+#define ICMPV6_EXT_ECHO_REPLY	    161
 
 #define ICMP6_DST_UNREACH_NOROUTE     0 /* no route to destination */
 #define ICMP6_DST_UNREACH_ADMIN       1 /* communication with destination */