Routing with network address translation

Routing with network address translation (NAT) allows you to access remote networks, such as the Internet, while protecting your private network by masking IP addresses that are used on the private network.

NAT provides access to a remote network, usually the Internet, while protecting the private network by masking the IP addresses that are used inside your firewall.

• Masquerade NAT
  Masquerade NAT is used to allow your private network to hide behind, as well as be represented by, the address bound to the public interface.

• Dynamic NAT
  Dynamic NAT can only be used to establish connections from within the private network out to the public network.

• Static NAT
  Static NAT can use inbound connections from a public network into a private network.

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