diff --git a/HISTORY b/HISTORY
index d949ed9..aa33420 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,4 +1,7 @@
 
+Version 6.12.0  2023-12-21
+ * bugfixed: parse ip and port use parseAddress instead of splitEx
+
 Version 6.11.0  2023-12-10
  * support IPv6, config item: address_family in tracker.conf and storage.conf
    use libfastcommon V1.71 and libserverframe 1.2.1
diff --git a/tracker/tracker_service.c b/tracker/tracker_service.c
index 9ce5a35..0a541d5 100644
--- a/tracker/tracker_service.c
+++ b/tracker/tracker_service.c
@@ -663,7 +663,7 @@ static int tracker_deal_notify_next_leader(struct fast_task_info *pTask)
 
 	*(pTask->recv.ptr->data + pTask->recv.ptr->length) = '\0';
 	pIpAndPort = pTask->recv.ptr->data + sizeof(TrackerHeader);
-	if (splitEx(pIpAndPort, ':', ipAndPort, 2) != 2)
+	if (parseAddress(pIpAndPort, ipAndPort) != 2)
 	{
 		logError("file: "__FILE__", line: %d, " \
 			"client ip: %s, invalid ip and port: %s", \
@@ -729,7 +729,7 @@ static int tracker_deal_commit_next_leader(struct fast_task_info *pTask)
 
 	*(pTask->recv.ptr->data + pTask->recv.ptr->length) = '\0';
 	pIpAndPort = pTask->recv.ptr->data + sizeof(TrackerHeader);
-	if (splitEx(pIpAndPort, ':', ipAndPort, 2) != 2)
+	if (parseAddress(pIpAndPort, ipAndPort) != 2)
 	{
 		logError("file: "__FILE__", line: %d, " \
 			"client ip: %s, invalid ip and port: %s", \