diff --git a/target/linux/mediatek/files-5.4/net/nat/foe_hook/Makefile b/target/linux/mediatek/files-5.4/net/nat/foe_hook/Makefile
new file mode 100755
index 0000000..b0d41e5
--- /dev/null
+++ b/target/linux/mediatek/files-5.4/net/nat/foe_hook/Makefile
@@ -0,0 +1,5 @@
+obj-y		+= foe_hook.o
+
+foe_hook-objs	+= hook_base.o
+foe_hook-objs	+= hook_ext.o
+
diff --git a/target/linux/mediatek/files-5.4/net/nat/foe_hook/hook_base.c b/target/linux/mediatek/files-5.4/net/nat/foe_hook/hook_base.c
new file mode 100755
index 0000000..2e41170
--- /dev/null
+++ b/target/linux/mediatek/files-5.4/net/nat/foe_hook/hook_base.c
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (c) 2019 MediaTek Inc.
+ * Author: Harry Huang <harry.huang@mediatek.com>
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <net/ra_nat.h>
+#define PURPOSE "FAST_NAT_SUPPORT"
+
+int (*ra_sw_nat_hook_rx)(struct sk_buff *skb) = NULL;
+EXPORT_SYMBOL(ra_sw_nat_hook_rx);
+
+int (*ra_sw_nat_hook_tx)(struct sk_buff *skb, int gmac_no) = NULL;
+EXPORT_SYMBOL(ra_sw_nat_hook_tx);
diff --git a/target/linux/mediatek/files-5.4/net/nat/foe_hook/hook_ext.c b/target/linux/mediatek/files-5.4/net/nat/foe_hook/hook_ext.c
new file mode 100755
index 0000000..72afec4
--- /dev/null
+++ b/target/linux/mediatek/files-5.4/net/nat/foe_hook/hook_ext.c
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (c) 2019 MediaTek Inc.
+ * Author: Harry Huang <harry.huang@mediatek.com>
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <net/ra_nat.h>
+
+struct net_device	*dst_port[MAX_IF_NUM];
+EXPORT_SYMBOL(dst_port);
+u8 dst_port_type[MAX_IF_NUM];
+EXPORT_SYMBOL(dst_port_type);
+
+struct foe_entry *ppe_virt_foe_base_tmp;
+EXPORT_SYMBOL(ppe_virt_foe_base_tmp);
+struct foe_entry *ppe1_virt_foe_base_tmp;
+EXPORT_SYMBOL(ppe1_virt_foe_base_tmp);
+
+int (*ppe_hook_rx_wifi)(struct sk_buff *skb) = NULL;
+EXPORT_SYMBOL(ppe_hook_rx_wifi);
+int (*ppe_hook_tx_wifi)(struct sk_buff *skb, int gmac_no) = NULL;
+EXPORT_SYMBOL(ppe_hook_tx_wifi);
+
+int (*ppe_hook_rx_modem)(struct sk_buff *skb, u32 cpu_reason, u32 foe_entry_num) = NULL;
+EXPORT_SYMBOL(ppe_hook_rx_modem);
+int (*ppe_hook_tx_modem)(struct sk_buff *skb, u32 net_type, u32 channel_id) = NULL;
+EXPORT_SYMBOL(ppe_hook_tx_modem);
+
+int (*ppe_hook_rx_eth)(struct sk_buff *skb) = NULL;
+EXPORT_SYMBOL(ppe_hook_rx_eth);
+int (*ppe_hook_tx_eth)(struct sk_buff *skb, int gmac_no) = NULL;
+EXPORT_SYMBOL(ppe_hook_tx_eth);
+
+int (*ppe_hook_rx_ext)(struct sk_buff *skb) = NULL;
+EXPORT_SYMBOL(ppe_hook_rx_ext);
+int (*ppe_hook_tx_ext)(struct sk_buff *skb, int gmac_no) = NULL;
+EXPORT_SYMBOL(ppe_hook_tx_ext);
+
+void (*ppe_dev_register_hook)(struct net_device *dev) = NULL;
+EXPORT_SYMBOL(ppe_dev_register_hook);
+void (*ppe_dev_unregister_hook)(struct net_device *dev) = NULL;
+EXPORT_SYMBOL(ppe_dev_unregister_hook);
+
+void  hwnat_magic_tag_set_zero(struct sk_buff *skb)
+{
+	if ((FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_PCI) ||
+	    (FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_WLAN) ||
+	    (FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_GE)) {
+		if (IS_SPACE_AVAILABLE_HEAD(skb))
+			FOE_MAGIC_TAG_HEAD(skb) = 0;
+	}
+	if ((FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_PCI) ||
+	    (FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_WLAN) ||
+	    (FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_GE)) {
+		if (IS_SPACE_AVAILABLE_TAIL(skb))
+			FOE_MAGIC_TAG_TAIL(skb) = 0;
+	}
+}
+EXPORT_SYMBOL(hwnat_magic_tag_set_zero);
+
+void hwnat_check_magic_tag(struct sk_buff *skb)
+{
+	if (IS_SPACE_AVAILABLE_HEAD(skb)) {
+		FOE_MAGIC_TAG_HEAD(skb) = 0;
+		FOE_AI_HEAD(skb) = UN_HIT;
+	}
+	if (IS_SPACE_AVAILABLE_TAIL(skb)) {
+		FOE_MAGIC_TAG_TAIL(skb) = 0;
+		FOE_AI_TAIL(skb) = UN_HIT;
+	}
+}
+EXPORT_SYMBOL(hwnat_check_magic_tag);
+
+void hwnat_set_headroom_zero(struct sk_buff *skb)
+{
+	if (skb->cloned != 1) {
+		if (IS_MAGIC_TAG_PROTECT_VALID_HEAD(skb) ||
+		    (FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_PPE)) {
+			if (IS_SPACE_AVAILABLE_HEAD(skb))
+				memset(FOE_INFO_START_ADDR_HEAD(skb), 0,
+				       FOE_INFO_LEN);
+		}
+	}
+}
+EXPORT_SYMBOL(hwnat_set_headroom_zero);
+
+void hwnat_set_tailroom_zero(struct sk_buff *skb)
+{
+	if (skb->cloned != 1) {
+		if (IS_MAGIC_TAG_PROTECT_VALID_TAIL(skb) ||
+		    (FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_PPE)) {
+			if (IS_SPACE_AVAILABLE_TAIL(skb))
+				memset(FOE_INFO_START_ADDR_TAIL(skb), 0,
+				       FOE_INFO_LEN);
+		}
+	}
+}
+EXPORT_SYMBOL(hwnat_set_tailroom_zero);
+
+void hwnat_copy_headroom(u8 *data, struct sk_buff *skb)
+{
+	memcpy(data, skb->head, FOE_INFO_LEN);
+}
+EXPORT_SYMBOL(hwnat_copy_headroom);
+
+void hwnat_copy_tailroom(u8 *data, int size, struct sk_buff *skb)
+{
+	memcpy((data + size - FOE_INFO_LEN),
+	       (skb_end_pointer(skb) - FOE_INFO_LEN),
+	       FOE_INFO_LEN);
+}
+EXPORT_SYMBOL(hwnat_copy_tailroom);
+
+void hwnat_setup_dma_ops(struct device *dev, bool coherent)
+{
+	arch_setup_dma_ops(dev, 0, 0, NULL, coherent);
+}
+EXPORT_SYMBOL(hwnat_setup_dma_ops);
+