There are three types of NAT: static NAT, dynamic NAT, and port nat (PAT). Where static NAT settings<br>It's the simplest. Every host in the internal network is permanently mapped to a legal one in the external network<br>The address of the server. The NAT pool defines a series of legal addresses in the external network,<br>The method of dynamic allocation is used to map to the internal network, which is mostly used for workstations in the network. Pat is the internal<br>Addresses are mapped to different ports of an IP address on an external network.<br>
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