In addition, Windows Server 2012 provides two backward compatibility services DNS64 and NAT64, which allows DirectAccess clients to communicate with servers inside the corporate network even if those servers are only capable of IPv4 networking.
此外，Windows Server 2012提供两种向后兼容服务：DNS64和NAT64，这允许DirectAccess客户端与企业网络中的服务器通信，即使这些服务器只有IPv4网络连接。