diff --git a/README.md b/README.md
index 2e8c039..a42e07b 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,10 @@ sudo wget https://github.com/esrrhs/pingtunnel/releases/download/1.5/pingtunnel_
 sudo unzip pingtunnel_linux64.zip
 sudo ./pingtunnel -type server
 ```
+* (可选)关闭系统默认的ping
+```
+echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all
+```
 ### 安装GUI客户端(新手推荐)
 * 从[pingtunnel-qt](https://github.com/esrrhs/pingtunnel-qt)下载qt的gui版本
 * 双击exe运行，修改server（如www.yourserver.com）、listen port（如1080），勾上sock5，其他设置默认即可，然后点击*GO*
diff --git a/README_EN.md b/README_EN.md
index 4904ef2..1793b3b 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -25,6 +25,10 @@ sudo wget https://github.com/esrrhs/pingtunnel/releases/download/1.5/pingtunnel_
 sudo unzip pingtunnel_linux64.zip
 sudo ./pingtunnel -type server
 ```
+* (Optional) Disable system default ping
+```
+echo 1> / proc / sys / net / ipv4 / icmp_echo_ignore_all
+```
 ### Install GUI client (recommended by novices)
 * Download the gui version of qt from [pingtunnel-qt](https://github.com/esrrhs/pingtunnel-qt)
 * Double-click the exe to run, modify the server (such as www.yourserver.com), listen port (such as 1080), tick sock5, other settings can be default, and then click *GO*