diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.h b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.h
index 517732e..178815b 100644
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.h
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.h
@@ -428,7 +428,7 @@
 	u32 ipv6_dip2;
 	u32 ipv6_dip3;
 	u32 prot : 8;
-	u32 resv : 24;
+	u32 hph : 24; /* hash placeholder */
 
 	u32 resv1;
 	u32 resv2;
diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_nf_hook.c b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_nf_hook.c
index 70ba913..273faa4 100644
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_nf_hook.c
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_nf_hook.c
@@ -1243,6 +1243,13 @@
 			entry.ipv6_3t_route.ipv6_dip3 =
 				foe->ipv6_3t_route.ipv6_dip3;
 
+			if (IS_IPV6_3T_ROUTE(foe)) {
+				entry.ipv6_3t_route.prot =
+					foe->ipv6_3t_route.prot;
+				entry.ipv6_3t_route.hph =
+					foe->ipv6_3t_route.hph;
+			}
+
 			if (IS_IPV6_5T_ROUTE(foe) || IS_IPV6_6RD(foe)) {
 				entry.ipv6_5t_route.sport =
 					foe->ipv6_5t_route.sport;