diff --git a/src/main/webapp/WEB-INF/views/cfg/ddosIpCfgForm.jsp b/src/main/webapp/WEB-INF/views/cfg/ddosIpCfgForm.jsp
index 1b102cf48..e986383f3 100644
--- a/src/main/webapp/WEB-INF/views/cfg/ddosIpCfgForm.jsp
+++ b/src/main/webapp/WEB-INF/views/cfg/ddosIpCfgForm.jsp
@@ -21,6 +21,7 @@ $(function(){
 		}else if(_ddosProtocol=="UDP_NTP"||_ddosProtocol=="UDP_DNS"){
 			$("[name='protocol']").val(17);
 		}
+		$("[name='protocol']").selectpicker("refresh");
 	}
 	$("#antiddosProtocol").on("change",function(){
 		var ddosProtocol=$("#antiddosProtocol").val();
@@ -31,17 +32,29 @@ $(function(){
 			$("#bpsThreadshold").attr("placeholder","Bit Per Second");
 			$("#ppsThreadshold").val("");
 			$("#ppsThreadshold").attr("placeholder","Packet Per Second");
+			//$("[name='protocol']").attr("disabled","true");//.parents(".form-group").removeClass("hidden");
 		}else{
 			$("#bpsThreadshold").removeAttr("disabled");
 			$("#ppsThreadshold").removeAttr("disabled");
+			//$("[name='protocol']").removeAttr("disabled");//.parents(".form-group").addClass("hidden");
 		}
 		if(ddosProtocol=="TCP_SYN"){
 			$("[name='protocol']").val(6);
 		}else if(ddosProtocol=="UDP_NTP"||ddosProtocol=="UDP_DNS"){
 			$("[name='protocol']").val(17);
 		}
+		$("[name='protocol']").selectpicker("refresh");
 	})
-	
+	$("[name='protocol']").on("change", function() {
+		if($(this).val()==0){
+			$("#antiddosProtocol").selectpicker("val","");
+		}else if($(this).val()==6){
+			$("#antiddosProtocol").selectpicker("val","TCP_SYN");
+		}else if($(this).val()==17){
+			$("#antiddosProtocol").selectpicker("val","UDP_NTP");
+		}
+		$("#antiddosProtocol").change();
+	}); 
 	$(".action").on("change", function() {
 		$("#serviceId").val($(this).attr("serviceId"));
 		$("#protocolId").val($(this).attr("protocolId"));