diff --git a/config/vcpe.cfg b/config/vcpe.cfg
index 5c92fcc..23dc248 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 = "udp and dst port 67";
+        net_filter = "vlan and udp and dst port 67";
         # IP地址池配置
         range_set: (
             {   dhcp_range = "192.168.101.2-192.168.101.4";
diff --git a/srcs/libs/include/network/vlan.h b/srcs/libs/include/network/vlan.h
index e47b869..4d591b7 100644
--- a/srcs/libs/include/network/vlan.h
+++ b/srcs/libs/include/network/vlan.h
@@ -13,7 +13,7 @@ extern "C" {
 #include <linux/if_ether.h>
 #include "common.h"
 
-#define VLAN_SUPPORT (0)
+#define VLAN_SUPPORT (1)
 
 #pragma pack(push)
 #pragma pack(1)