diff --git a/misc.cpp b/misc.cpp
index d4ccfcf..e999574 100644
--- a/misc.cpp
+++ b/misc.cpp
@@ -790,6 +790,16 @@ void process_arg(int argc, char *argv[])  //process all options
 	 log_bare(log_info,"socket_buf_size=%d ",socket_buf_size);
 
 	 log_bare(log_info,"\n");
+
+	 if(auto_add_iptables_rule&& use_tcp_dummy_socket)
+	 {
+		mylog(log_error,"-a,--auto-rule is not supposed to be used with easyfaketcp mode, you are likely making a mistake, but we can try to continue\n"); 
+	 }
+
+	 if(keep_rule&& use_tcp_dummy_socket)
+	 {
+		mylog(log_error,"--keep-rule is not supposed to be used with easyfaketcp mode, you are likely making a mistake, but we can try to continue\n"); 
+	 }
 }
 
 void pre_process_arg(int argc, char *argv[])//mainly for load conf file