diff --git a/bird/function/unet.conf b/bird/function/unet.conf
index 6be7633..c535550 100644
--- a/bird/function/unet.conf
+++ b/bird/function/unet.conf
@@ -25,8 +25,8 @@ function unet_is_valid_network_v4_allnet(){
 
 function unet_is_voalid_net_v6(){
   return net ~ [
-    2406:840:e600::/44{44,56},
-    2a0f:1cc5:0010::/44{44,56},
+    2406:840:e600::/44{44,64},
+    2a0f:1cc5:0010::/44{44,64},
     fde8:936e:ee29::/48+
   ];
 }
diff --git a/readme.md b/readme.md
index 242cab7..9a3c987 100644
--- a/readme.md
+++ b/readme.md
@@ -25,4 +25,11 @@
     mv bird_config/bird /etc/
 
 ## 注意
-请务必修改下在输入birdc c
\ No newline at end of file
+请务必修改下在输入birdc c
+
+## 全服更新使用脚本
+
+    cd 
+    wget https://git.nia.ink/brnet/bird_config/raw/branch/master/update.sh
+    chmod +x update.sh
+    ./update.sh 
\ No newline at end of file
diff --git a/update.sh b/update.sh
new file mode 100644
index 0000000..bfe8c46
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+
+# 配置参数（请替换为实际URL）
+URL="https://git.nia.ink/brnet/bird_config/raw/branch/master/bird/function/unet.conf"  # 替换为你的$url
+TARGET_FILE="/etc/bird/function/unet.conf"
+BACKUP_FILE="${TARGET_FILE}.bak.$(date +%Y%m%d%H%M%S)"  # 带时间戳的备份文件
+LOG_FILE="/var/log/update_unet_conf.log"
+
+# 日志函数
+log() {
+    echo "[$(date +%Y-%m-%d %H:%M:%S)] $1" >> "$LOG_FILE"
+}
+
+# 检查root权限
+if [ "$(id -u)" -ne 0 ]; then
+    log "错误：必须使用root权限运行脚本（请用sudo）"
+    echo "错误：必须使用root权限运行脚本（请用sudo）"
+    exit 1
+fi
+
+# 检查wget是否安装
+if ! command -v wget &> /dev/null; then
+    log "错误：未安装wget，请先执行 'sudo apt install wget' 或 'sudo yum install wget' 安装"
+    echo "错误：未安装wget，请先安装"
+    exit 1
+fi
+
+# 检查目标文件目录是否存在
+if [ ! -d "$(dirname "$TARGET_FILE")" ]; then
+    log "错误：目标目录 $(dirname "$TARGET_FILE") 不存在"
+    echo "错误：目标目录不存在"
+    exit 1
+fi
+
+# 备份原文件
+log "开始备份原文件到 $BACKUP_FILE"
+if cp "$TARGET_FILE" "$BACKUP_FILE"; then
+    log "备份成功"
+else
+    log "错误：备份失败，终止操作"
+    echo "错误：备份失败"
+    exit 1
+fi
+
+# 下载并覆盖文件
+log "开始从 $URL 下载文件"
+if wget -q -O "$TARGET_FILE" "$URL"; then  # -q 静默模式，-O 指定输出文件
+    log "下载成功，已覆盖 $TARGET_FILE"
+else
+    log "错误：下载失败，恢复原文件"
+    echo "错误：下载失败，正在恢复原文件..."
+    mv "$BACKUP_FILE" "$TARGET_FILE"  # 恢复备份
+    exit 1
+fi
+
+# 验证文件内容（检查是否为空或乱码）
+if [ ! -s "$TARGET_FILE" ]; then  # -s 检查文件非空
+    log "错误：下载的文件为空，恢复原文件"
+    echo "错误：文件为空，正在恢复原文件..."
+    mv "$BACKUP_FILE" "$TARGET_FILE"
+    exit 1
+fi
+
+# （可选）重启bird服务并检查状态
+log "尝试重启bird服务"
+if systemctl restart bird; then
+    log "bird服务重启成功"
+    if systemctl is-active --quiet bird; then
+        log "bird服务运行正常"
+        echo "操作完成，配置已更新且服务正常"
+    else
+        log "错误：bird服务重启后未正常运行，请检查配置"
+        echo "警告：服务未正常运行，请检查日志"
+    fi
+else
+    log "错误：bird服务重启失败，请手动检查"
+    echo "错误：服务重启失败，请手动处理"
+fi
+
+log "脚本执行完毕"
\ No newline at end of file