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Diffstat (limited to 'ace/os_include/netinet/os_in.h')
-rw-r--r--ace/os_include/netinet/os_in.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/ace/os_include/netinet/os_in.h b/ace/os_include/netinet/os_in.h
index 88e25e3f507..8ad4cd853d6 100644
--- a/ace/os_include/netinet/os_in.h
+++ b/ace/os_include/netinet/os_in.h
@@ -118,11 +118,15 @@ extern "C"
# if !defined (IP_MULTICAST_IF)
# define IP_MULTICAST_IF 0
-#endif /* IP_MULTICAST_IF */
+# endif /* IP_MULTICAST_IF */
# if !defined (IP_MULTICAST_TTL)
# define IP_MULTICAST_TTL 1
-#endif /* IP_MULTICAST_TTL */
+# endif /* IP_MULTICAST_TTL */
+
+# if !defined (IP_MULTICAST_LOOP)
+# define IP_MULTICAST_LOOP 2
+# endif /* IP_MULTICAST_LOOP */
# if !defined (IP_MAX_MEMBERSHIPS)
# define IP_MAX_MEMBERSHIPS 0