diff --git a/denyip b/denyip
index e653fc1..ca6f5f0 100644
Binary files a/denyip and b/denyip differ
diff --git a/main.go b/main.go
index e9ee2cc..76a2d02 100644
--- a/main.go
+++ b/main.go
@@ -447,7 +447,7 @@ func HandleCmd() {
 	var help bool
 	InterfaceName = flag.String("i", "", "指定要使用的网络接口")
 	flag.BoolVar(&InterfacesList, "l", false, "列出可用的网络接口")
-	Protocol = flag.String("f", "tcp", "指定 BPF 过滤器")
+	Protocol = flag.String("f", "'tcp' or 'udp' or 'tcp or udp'", "指定 BPF 过滤器")
 	PcapFile = flag.String("o", "", "保存捕获数据的输出文件（可选）")
 	flag.StringVar(&instruction, "s", "", "-s start 启动 Iptables 规则\n-s stop  停止 Iptables 规则\n-s list  打印 Iptables 规则")
 	flag.BoolVar(&help, "h", false, "")