This is the most common form of NAT-PT/NAPT-PT but relies on DNS translation between AAAA and A records known as DNS-ALG as defined in RFC 2694.
这是最常见的NAT-PT/NAPT-PT形式，只不过其依赖于在AAAA与A记录之间的DNS翻译，这种翻译机制被称为DNS-ALG，定义在RFC 2694。