diff -ru multisync/plugins/irmc_sync/src/irmc_obex.c multisync-conn/plugins/irmc_sync/src/irmc_obex.c
--- multisync/plugins/irmc_sync/src/irmc_obex.c	2004-02-09 19:53:31.000000000 +0100
+++ multisync-conn/plugins/irmc_sync/src/irmc_obex.c	2005-12-15 21:51:40.546407332 +0100
@@ -117,6 +117,9 @@
 void client_done(obex_t *handle, obex_object_t *object, 
 		 gint obex_cmd, gint obex_rsp)
 {
+  obex_headerdata_t hv;
+  uint8_t hi;
+  uint32_t hlen;
   obexdata_t *ud;
   ud = OBEX_GetUserData(handle);
   
@@ -124,6 +127,14 @@
 
   switch(obex_cmd)	{
   case OBEX_CMD_CONNECT:
+    /* save the connection id */
+    ud->connection_id = 0xffffffff;
+    while(OBEX_ObjectGetNextHeader(handle, object, &hi, &hv, &hlen)) {
+      if(hi == OBEX_HDR_CONNECTION) {
+        fprintf(stderr, "%s() Found connection number: %d\n", __func__, hv.bq4);
+        ud->connection_id = hv.bq4;
+      }
+    }
     break;
   case OBEX_CMD_DISCONNECT:
     break;
@@ -692,6 +703,10 @@
 
   userdata = (obexdata_t*) OBEX_GetUserData(handle);  
   if ((object = OBEX_ObjectNew(handle, OBEX_CMD_PUT))) {
+    if(userdata->connection_id != 0xffffffff)
+      (void) OBEX_ObjectAddHeader(handle, object, OBEX_HDR_CONNECTION,
+				  (obex_headerdata_t) userdata->connection_id,
+				  sizeof(uint32_t), OBEX_FL_FIT_ONE_PACKET);
     hd.bq4 = body_size; 
     OBEX_ObjectAddHeader(handle, object, OBEX_HDR_LENGTH, hd, 4, 0); 
     /* Add unicode name header*/ 
@@ -736,6 +751,10 @@
 
   userdata = (obexdata_t*) OBEX_GetUserData(handle);  
   if((object = OBEX_ObjectNew(handle, OBEX_CMD_GET))) {
+    if(userdata->connection_id != 0xffffffff)
+      (void) OBEX_ObjectAddHeader(handle, object, OBEX_HDR_CONNECTION,
+				  (obex_headerdata_t) userdata->connection_id,
+				  sizeof(uint32_t), OBEX_FL_FIT_ONE_PACKET);
     /* Add unicode name header*/ 
     namesize = OBEX_CharToUnicode(unicodename, name, 1024);
     hd.bs = unicodename; 
diff -ru multisync/plugins/irmc_sync/src/irmc_obex.h multisync-conn/plugins/irmc_sync/src/irmc_obex.h
--- multisync/plugins/irmc_sync/src/irmc_obex.h	2004-02-09 19:53:31.000000000 +0100
+++ multisync-conn/plugins/irmc_sync/src/irmc_obex.h	2005-12-15 21:51:33.625513368 +0100
@@ -63,6 +63,7 @@
   int connected;
   struct termios oldtio;
   cobex_t cobex; // Data for OBEX over cable
+  uint32_t connection_id; /* set to 0xffffffff if unused */
 } obexdata_t;