![]() ![]() RFC 2663 refers to this type of NAT as basic NAT it is also called a one-to-one NAT. The simplest type of NAT provides a one-to-one translation of IP addresses. 4 Type of NAT and NAT traversal, role of port preservation for TCP.The specifics of NAT behavior are not commonly documented by vendors of equipment containing NAT implementations. ![]() Īs network address translation modifies the IP address information in packets, NAT implementations may vary in their specific behavior in various addressing cases and their effect on network traffic. One Internet-routable IP address of a NAT gateway can be used for an entire private network. It has become a popular and essential tool in conserving global address space in the face of IPv4 address exhaustion. The technique was originally used to avoid the need to assign a new address to every host when a network was moved, or when the upstream Internet service provider was replaced, but could not route the network's address space. Network address translation ( NAT) is a method of mapping an IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device. Network address translation between a private network and the Internet
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