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DNAT Service Overview

<p>DNAT can map the Internet IP to the IP address of a private network instance (IP address of the intranet ELB). The specified ELB instance uses the specified Internet IP to provide services to the Internet.</p> <p>DNAT supports IP mapping and port mapping.</p> <p>&bull;&nbsp;IP mapping maps the intranet IP to the Internet IP and provides service for the Internet via such Internet IP.</p> <p>&bull;&nbsp;Port mapping maps a port of the Internet IP to the ELB instance of the intranet. In that way, the specified ELB instance provides services to the Internet through the specified Internet IP and the port. Port mapping can maximize the use of a single Internet IP. Port mapping is initiated by an external address, and is mainly used for external publishing of intranet services.</p>
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