diff --git a/src/main/java/com/dispose/ability/impl/DpTechAbilityImpl.java b/src/main/java/com/dispose/ability/impl/DpTechAbilityImpl.java
index 4573f270..f3711997 100644
--- a/src/main/java/com/dispose/ability/impl/DpTechAbilityImpl.java
+++ b/src/main/java/com/dispose/ability/impl/DpTechAbilityImpl.java
@@ -6,15 +6,14 @@ import com.dispose.common.DisposeCapacityType;
 import com.dispose.common.DpTechAttackType;
 import com.dispose.common.DpTechConfigValue;
 import com.dispose.common.ErrorCode;
+import com.dispose.common.Helper;
 import com.dispose.common.NetflowDirection;
 import com.dispose.pojo.po.MulReturnType;
 import com.dispose.pojo.vo.DeviceFirewareInfo;
 import com.dptech.dispose.AbnormalFlowCleaningServicePortType;
 import com.dptech.dispose.ArrayOfProtectionObjectDataForService;
 import com.dptech.dispose.NtcRequestResultInfo;
-import inet.ipaddr.AddressStringException;
 import inet.ipaddr.IPAddress;
-import inet.ipaddr.IPAddressSeqRange;
 import inet.ipaddr.IPAddressString;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.cxf.endpoint.Client;
@@ -54,39 +53,6 @@ public class DpTechAbilityImpl implements DisposeAbility {
      */
     private AbnormalFlowCleaningServicePortType cleanTypePort;
 
-    /**
-     * Ip in range boolean.
-     *
-     * @param rangeIp the range ip
-     * @param ipAddr  the ip addr
-     * @return the boolean
-     */
-    private static boolean ipInRange(String rangeIp, String ipAddr) {
-        final int numIp = 2;
-
-        // 范围为空字符串或者与IP相同时，返回真
-        if (rangeIp.length() == 0 || rangeIp.equals(ipAddr)) {
-            return true;
-        }
-
-        String[] ipList = rangeIp.split("-");
-
-        if (ipList.length != numIp) {
-            return false;
-        }
-
-        try {
-            IPAddress lower = new IPAddressString(ipList[0]).toAddress();
-            IPAddress upper = new IPAddressString(ipList[1]).toAddress();
-            IPAddress addr = new IPAddressString(ipAddr).toAddress();
-            IPAddressSeqRange range = lower.toSequentialRange(upper);
-            return range.contains(addr);
-        } catch (AddressStringException ignored) {
-
-        }
-        return false;
-    }
-
     /**
      * Init device env.
      *
@@ -303,11 +269,11 @@ public class DpTechAbilityImpl implements DisposeAbility {
         IPAddress addr = new IPAddressString(ipAddr).getAddress();
         synchronized (this) {
             if (addr.isIPv4()) {
-                return protectIpV4.stream().anyMatch(v -> DpTechAbilityImpl.ipInRange(v, ipAddr));
+                return protectIpV4.stream().anyMatch(v -> Helper.ipInRange(v, ipAddr));
             }
 
             if (addr.isIPv6()) {
-                return protectIpV6.stream().anyMatch(v -> DpTechAbilityImpl.ipInRange(v, ipAddr));
+                return protectIpV6.stream().anyMatch(v -> Helper.ipInRange(v, ipAddr));
             }
         }
         return false;
diff --git a/src/main/java/com/dispose/common/Helper.java b/src/main/java/com/dispose/common/Helper.java
index f22917bf..85c62b02 100644
--- a/src/main/java/com/dispose/common/Helper.java
+++ b/src/main/java/com/dispose/common/Helper.java
@@ -1,6 +1,8 @@
 package com.dispose.common;
 
+import inet.ipaddr.AddressStringException;
 import inet.ipaddr.IPAddress;
+import inet.ipaddr.IPAddressSeqRange;
 import inet.ipaddr.IPAddressString;
 
 import java.sql.Timestamp;
@@ -114,4 +116,46 @@ public class Helper {
     public static String ipPortNormalize(String ipPort, HttpType type) {
         return ipPort.length() == 0 ? (type == HttpType.HTTP ? "80" : "443") : ipPort;
     }
+
+    /**
+     * Ip in range boolean.
+     *
+     * @param rangeIp the range ip
+     * @param ipAddr  the ip addr
+     * @return the boolean
+     */
+    public static boolean ipInRange(String rangeIp, String ipAddr) {
+        final int numIp = 2;
+        final String cidrSplit = "/";
+
+        // 范围为空字符串或者与IP相同时，返回真
+        if (rangeIp.length() == 0 || rangeIp.equals(ipAddr)) {
+            return true;
+        }
+
+        // 处理CIDR格式
+        if(rangeIp.contains(cidrSplit)) {
+            IPAddressString network = new IPAddressString(rangeIp);
+            IPAddressString ip = new IPAddressString(ipAddr);
+            return network.prefixContains(ip);
+        }
+
+        // 处理"-"连接格式
+        String[] ipList = rangeIp.split("-");
+
+        if (ipList.length != numIp) {
+            return false;
+        }
+
+        try {
+            IPAddress lower = new IPAddressString(ipList[0]).toAddress();
+            IPAddress upper = new IPAddressString(ipList[1]).toAddress();
+            IPAddress addr = new IPAddressString(ipAddr).toAddress();
+            IPAddressSeqRange range = lower.toSequentialRange(upper);
+            return range.contains(addr);
+        } catch (AddressStringException ignored) {
+
+        }
+        return false;
+    }
 }