diff --git a/config/vcpe.cfg b/config/vcpe.cfg
index 7789a73..6393d70 100644
--- a/config/vcpe.cfg
+++ b/config/vcpe.cfg
@@ -100,7 +100,7 @@ application:
         # MAC地址黑名单
         # mac_filter = ["00:01:02:03:04:07", "00:01:02:03:04:01"];
         # 数据包过滤器
-        net_filter = "vlan or (udp and dst port 67)";
+        net_filter = " (udp and dst port 67) or vlan";
         # IP地址池配置
         range_set: (
             {   dhcp_range = "192.168.101.2-192.168.101.40";
diff --git a/srcs/service/dhcpd/db_interface.c b/srcs/service/dhcpd/db_interface.c
index 8ab3afc..fd976c4 100644
--- a/srcs/service/dhcpd/db_interface.c
+++ b/srcs/service/dhcpd/db_interface.c
@@ -6,8 +6,6 @@
 #include "user_errno.h"
 #include "database.h"
 #include "dhcp_network.h"
-#include "rfc2131.h"
-#include "ip_pool.h"
 #include "db_interface.h"
 #include "misc.h"
 #include "zlog_module.h"
@@ -53,6 +51,18 @@
     "    createTm TIMESTAMP   DEFAULT (datetime('now', 'localtime')) NOT NULL" \
     "); CREATE INDEX IF NOT EXISTS pre_assign_index ON pre_assign(ip, uid);"
 
+#define CREATE_IPTV_TABLE()                                                    \
+    "CREATE TABLE IF NOT EXISTS iptv"                                          \
+    " (  id       INTEGER PRIMARY KEY AUTOINCREMENT,"                          \
+    "    uid      INTEGER         NOT NULL,"                                   \
+    "    mac      CHAR(20)        NOT NULL,"                                   \
+    "    createTm TIMESTAMP   DEFAULT (datetime('now', 'localtime')) NOT NULL" \
+    "); CREATE INDEX IF NOT EXISTS iptv_index ON iptv(uid);"
+
+#define INSERT_IPTV_DEVICE                                                                                        \
+    "INSERT INTO iptv (uid, mac) SELECT %d, '%s' WHERE NOT EXISTS (SELECT id FROM iptv WHERE uid = %d AND mac = " \
+    "'%s');"
+
 #define INSERT_PRE_ASSIGN_ROW_FMT                                                                        \
     "INSERT INTO pre_assign (uid, xid, hostname, mac, ip, lease, netmask, gateway, dns1, dns2, server) " \
     "VALUES (%d, %d, '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '%s');"
@@ -114,6 +124,22 @@
 
 #define LEASE_RELEASE_FMT           "DELETE FROM lease WHERE uid = %d AND mac = '%s' AND ip = '%s'"
 
+int db_iptv_add_device(U32 uid, const char *pMac) {
+    int  rc;
+    char buf[2048] = {0};
+    //INSERT INTO iptv (uid, mac) SELECT 0, '58:B4:2D:DA:D4:25' WHERE NOT EXISTS (SELECT id FROM iptv WHERE uid = 0 AND mac = '58:B4:2D:DA:D4:26')
+
+    snprintf(buf, 2048, INSERT_IPTV_DEVICE, uid, pMac, uid, pMac);
+
+    rc = db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
+
+    if (rc != ERR_SUCCESS) {
+        LOG_MOD(error, ZM_DHCP_DB, "DB add iptv device error: %s\n", buf);
+    }
+
+    return ERR_SUCCESS;
+}
+
 static int lease_add(PDHCP_REQ   pReq,
                      const char *ip,
                      const char *netmask,
@@ -506,5 +532,11 @@ int db_init_lease_database() {
         return rc;
     }
 
+    rc = db_sqlite3_sql_exec(CREATE_IPTV_TABLE(), NULL, NULL, NULL);
+
+    if (rc != ERR_SUCCESS) {
+        return rc;
+    }
+
     return ERR_SUCCESS;
 }
\ No newline at end of file
diff --git a/srcs/service/dhcpd/dhcpd_network.c b/srcs/service/dhcpd/dhcpd_network.c
index 07e0b22..954c6ff 100644
--- a/srcs/service/dhcpd/dhcpd_network.c
+++ b/srcs/service/dhcpd/dhcpd_network.c
@@ -536,6 +536,8 @@ static void on_sock_recv(uv_work_t *req) {
     PDHCP_PROTO       pkg    = get_dhcp_date(pWork->pPkgBase, &optSize, pWork->nSize);
     struct iphdr     *pIpHdr = (struct iphdr *)((U8 *)pkg - sizeof(struct iphdr) - sizeof(struct udphdr));
 
+    //LOG_MSG(info, "Recv, xid: 0x%08X\n", DHCP_XID(pkg->xid));
+
     //sprintf(macStr, "%02X:%02X:%02X:%02X:%02X:%02X", macStr[0], macStr[1], macStr[2], macStr[3], macStr[4], macStr[5]);
 
     // Check op flag
@@ -581,7 +583,12 @@ static void on_sock_recv(uv_work_t *req) {
 
             ret = dhcp_get_option(OPT_VENDORCLASSID, pkg->options, optSize, &opt);
             if (ret == ERR_SUCCESS) {
-                strncpy(reqDhcp.vendorClassId, (char *)opt.pValue, MIN((int)opt.len, 256));
+                memcpy(reqDhcp.vendorClassId, (char *)opt.pValue, MIN((int)opt.len, 256));
+
+                // IPTV 组播设备不用分配IP地址
+                if (analyze_iptv_multicast_dev((const U8 *)reqDhcp.vendorClassId, opt.len, macStr, reqDhcp.uid)) {
+                    return;
+                }
             }
 
             ret = dhcp_get_option(OPT_HOSTNAME, pkg->options, optSize, &opt);
@@ -719,7 +726,6 @@ static void on_sock_recv(uv_work_t *req) {
         //dhcp_option_prase(optMsg, pkg->options, pWork->nSize - sizeof(DHCP_PACKAGE));
 
         //LOG_MSG_HEX(trace, pkg, pWork->nSize);
-        //LOG_MSG(info, "Recv, xid: 0x%08X\n", DHCP_XID(pkg->xid));
 
 #if 0
     LOG_MOD(info, ZM_DHCP_NET, "vlan = %u\n", VXLAN_VIN_ID_PACK(pkg->hdr.vlan.id));
diff --git a/srcs/service/dhcpd/include/db_interface.h b/srcs/service/dhcpd/include/db_interface.h
index 2258282..5405dbd 100644
--- a/srcs/service/dhcpd/include/db_interface.h
+++ b/srcs/service/dhcpd/include/db_interface.h
@@ -7,6 +7,8 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
+#include "rfc2131.h"
+#include "ip_pool.h"
 int db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool);
 int db_init_lease_database();
 int db_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign);
@@ -17,6 +19,7 @@ int db_clearup_timeout_lease();
 int db_lock_pre_assign_ip();
 int db_release_lease(PDHCP_REQ pReq);
 int db_add_lease(PDHCP_REQ pReq, PPOOL_CTX pCtx);
+int db_iptv_add_device(U32 uid, const char *pMac);
 #ifdef __cplusplus
 }
 #endif
diff --git a/srcs/service/dhcpd/include/dhcp_options.h b/srcs/service/dhcpd/include/dhcp_options.h
index 989c237..8c205a0 100644
--- a/srcs/service/dhcpd/include/dhcp_options.h
+++ b/srcs/service/dhcpd/include/dhcp_options.h
@@ -4,7 +4,9 @@
 
 #ifndef VCPE_DHCP_OPTIONS_H
 #define VCPE_DHCP_OPTIONS_H
+
 #include "common.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -148,8 +150,10 @@ int         dhcp_add_buf_option(U8 *pBegin, int opt, U8 *buf, U8 nSize);
 int         dhcp_add_string_option(U8 *pBegin, int opt, const char *buf);
 int         dhcp_get_option(int opt, U8 *pOptData, U32 nSize, PDHCP_OPT pVal);
 void        dhcp_option_cfg_init();
-const char* dhcp_get_opName(int opt);
+const char *dhcp_get_opName(int opt);
 int         dhcp_get_opType(int opt);
+int         analyze_iptv_multicast_dev(const unsigned char *p, int UNUSED_size, const char *mac, U32 uid);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/srcs/service/dhcpd/iptv_dev.c b/srcs/service/dhcpd/iptv_dev.c
new file mode 100644
index 0000000..af70f10
--- /dev/null
+++ b/srcs/service/dhcpd/iptv_dev.c
@@ -0,0 +1,21 @@
+//
+// Created by HuangXin on 2023/5/17.
+//
+#include <string.h>
+#include "zlog_module.h"
+#include "common.h"
+#include "db_interface.h"
+
+int analyze_iptv_multicast_dev(const unsigned char *p, int UNUSED(size), const char *mac, U32 uid) {
+    char ipTvId[16] = {0};
+    memcpy(ipTvId, &p[4], 10);
+
+    if (strcmp(ipTvId, "JSCMCC-OTT") == 0) {
+        LOG_MOD(debug, ZM_DHCP, "Found IPTV %s of user %d\n", mac, uid);
+        db_iptv_add_device(uid, mac);
+        return TRUE;
+    }
+
+    LOG_MOD(trace, ZM_DHCP, "Device %s is not IPTV device of user %d\n", mac, uid);
+    return FALSE;
+}
\ No newline at end of file