1 files changed, 6 insertions, 1 deletions

diff --git a/src/ot_livesync.h b/src/ot_livesync.h
index 4bd3af0..cf3c64c 100644
--- a/src/ot_livesync.h
+++ b/src/ot_livesync.h
@@ -7,7 +7,8 @@
 #include "trackerlogic.h"
 
 /*
-  Syncing is done as udp packets in the multicast domain 224.0.42.5 port 9696
+  Syncing is done as udp packets in the multicast group 224.0.23.5, on the
+  port livesync.cluster.listen names, 9696 by default
 
   Each tracker should join the multicast group and send its live sync packets
   to that group, using a ttl of 1
@@ -47,6 +48,10 @@
 void livesync_init(void);
 void livesync_deinit(void);
 
+/* The group to join and to send to, (defaults to 224.0.23.5).
+   Returns -1 if group is not a v4 multicast address. */
+int  livesync_set_group(const ot_ip6 group);
+
 /* Join multicast group for listening and create sending socket */
 void livesync_bind_mcast(ot_ip6 ip, uint16_t port);