diff --git a/README.md b/README.md
index 9ac5a7b..e0fc193 100644
--- a/README.md
+++ b/README.md
@@ -24,10 +24,9 @@ username="用户名"
 password="密码"
 host="127.0.0.1"
 port=9091
-ipv4_chain="OUTPUT"  # 定义IPv4主链名称
-ipv6_chain="OUTPUT"  # 定义IPv6主链名称
-ipv4_custom_chain="CUSTOM_CHAIN_IPV4"  # 定义IPv4自定义链名称
-ipv6_custom_chain="CUSTOM_CHAIN_IPV6"  # 定义IPv6自定义链名称
+chain="OUTPUT"  # 定义主链名称
+custom_chain_ipv4="CUSTOM_CHAIN_IPV4"  # 定义IPv4自定义链名称
+custom_chain_ipv6="CUSTOM_CHAIN_IPV6"  # 定义IPv6自定义链名称
 
 # 获取所有传输任务的对等节点IP地址
 echo "获取传输任务对等节点的IP地址..."
@@ -40,28 +39,42 @@ hour=$(date "+%H")
 
 # 如果当前时间是每4小时的半小时（例如，0:30，4:30等）
 if [ "$minute" -eq 30 ] && [ $(($hour % 4)) -eq 0 ]; then
-    echo "当前时间是每4小时的半小时, 清空自定义链 $ipv4_custom_chain 和 $ipv6_custom_chain"
-    iptables -F $ipv4_custom_chain  # 清空IPv4自定义链
-    ip6tables -F $ipv6_custom_chain  # 清空IPv6自定义链
+    echo "当前时间是每4小时的半小时, 清空自定义链 $custom_chain_ipv4 和 $custom_chain_ipv6"
+    iptables -F $custom_chain_ipv4  # 清空IPv4自定义链
+    ip6tables -F $custom_chain_ipv6  # 清空IPv6自定义链
 fi
 
 # 检查并创建自定义链（如果不存在）
 echo "检查并创建自定义链（如果不存在）..."
-iptables -L $ipv4_custom_chain &> /dev/null || (echo "创建IPv4自定义链 $ipv4_custom_chain"; iptables -N $ipv4_custom_chain)
-ip6tables -L $ipv6_custom_chain &> /dev/null || (echo "创建IPv6自定义链 $ipv6_custom_chain"; ip6tables -N $ipv6_custom_chain)
+iptables -L $custom_chain_ipv4 &> /dev/null || (echo "创建IPv4自定义链 $custom_chain_ipv4"; iptables -N $custom_chain_ipv4)
+ip6tables -L $custom_chain_ipv6 &> /dev/null || (echo "创建IPv6自定义链 $custom_chain_ipv6"; ip6tables -N $custom_chain_ipv6)
 
 # 确保自定义链在主链中被调用
 echo "确保自定义链在主链中被调用..."
-iptables -C $ipv4_chain -j $ipv4_custom_chain &> /dev/null || (echo "添加 $ipv4_custom_chain 到 $ipv4_chain"; iptables -A $ipv4_chain -j $ipv4_custom_chain)
-ip6tables -C $ipv6_chain -j $ipv6_custom_chain &> /dev/null || (echo "添加 $ipv6_custom_chain 到 $ipv6_chain"; ip6tables -A $ipv6_chain -j $ipv6_custom_chain)
+iptables -C $chain -j $custom_chain_ipv4 &> /dev/null || (echo "添加 $custom_chain_ipv4 到 $chain"; iptables -A $chain -j $custom_chain_ipv4)
+ip6tables -C $chain -j $custom_chain_ipv6 &> /dev/null || (echo "添加 $custom_chain_ipv6 到 $chain"; ip6tables -A $chain -j $custom_chain_ipv6)
 
 # 获取当前的自定义链规则
 echo "获取当前自定义链规则..."
-ipv4_rules=$(iptables -nL $ipv4_custom_chain)
-ipv6_rules=$(ip6tables -nL $ipv6_custom_chain)
+ipv4_rules=$(iptables -nL $custom_chain_ipv4)
+ipv6_rules=$(ip6tables -nL $custom_chain_ipv6)
 echo "当前IPv4自定义链规则: $ipv4_rules"
 echo "当前IPv6自定义链规则: $ipv6_rules"
 
+# 检查是否为私有 IPv4 地址
+is_private_ipv4() {
+    local ip=$1
+    # Check for private IPv4 addresses
+    ipcalc -n $ip | grep -q 'Network: 10.0.0.0/8\|172.16.0.0/12\|192.168.0.0/16'
+}
+
+# 检查是否为私有 IPv6 地址
+is_private_ipv6() {
+    local ip=$1
+    # Check for private IPv6 addresses
+    echo $ip | grep -qE '^fc00:|^fd00:|^fe80:'
+}
+
 # 遍历指定的客户端名称
 for client in xunlei xl thunder gt0002 xl0012 xfplay dandanplay dl3760 qq hp dt xm go taibei sp StellarPlayer flashget torrentstorm github ljyun cacao "-tt" "qbittorrent/3.3.15"
 do
@@ -76,13 +89,23 @@ do
             echo -n "$i 不在规则中, "  # 如果不在规则中，输出IP并说明未在规则中
             # 检查是否为IPv6地址
             if echo "$i" | grep -q ":" ; then
-                # 如果是IPv6地址，添加DROP规则到IPv6自定义链
-                echo "添加IPv6地址 $i 到自定义链 $ipv6_custom_chain"
-                ip6tables -I $ipv6_custom_chain -d $i -j DROP
+                # 如果是IPv6地址，检查是否为私有地址
+                if is_private_ipv6 $i; then
+                    echo "$i 是私有IPv6地址, 忽略."
+                else
+                    # 如果是IPv6地址，添加DROP规则到IPv6自定义链
+                    echo "添加IPv6地址 $i 到自定义链 $custom_chain_ipv6"
+                    ip6tables -I $custom_chain_ipv6 -d $i -j DROP
+                fi
             else
-                # 如果是IPv4地址，添加DROP规则到IPv4自定义链
-                echo "添加IPv4地址 $i 到自定义链 $ipv4_custom_chain"
-                iptables -I $ipv4_custom_chain -d $i -j DROP
+                # 如果是IPv4地址，检查是否为私有地址
+                if is_private_ipv4 $i; then
+                    echo "$i 是私有IPv4地址, 忽略."
+                else
+                    # 如果是IPv4地址，添加DROP规则到IPv4自定义链
+                    echo "添加IPv4地址 $i 到自定义链 $custom_chain_ipv4"
+                    iptables -I $custom_chain_ipv4 -d $i -j DROP
+                fi
             fi
         fi
     done