diff --git a/menu.sh b/menu.sh
index 267492b..e278bd3 100644
--- a/menu.sh
+++ b/menu.sh
@@ -875,8 +875,8 @@ check_stack(){
 	
 	# 判断用于检测 NAT VSP，以选择正确配置文件
 	if [ "$m" -le 3 ]; then
-		NAT=("0@1@" "1@@1" "1@1@1" "1@1@")
-		for ((n=0;n<${#NAT[@]};n++)); do [ "$INET4@$INET6@$IPV4" = "${NAT[n]}" ] && break; done
+		NAT=("1@0@" "1@@1" "1@1@1" "1@1@")
+		for ((n=0;n<${#NAT[@]};n++)); do [ "$IPV4@$IPV6@$INET4" = "${NAT[n]}" ] && break; done
 		NATIVE=("IPv6 only" "IPv4 only" "${T[${L}69]}" "NAT IPv4")
 		CONF1=("014" "104" "114" "11N4")
 		CONF2=("016" "106" "116" "11N6")