A Practical Look at Network Address Translation
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(0)Overview: Network Address Translation (NAT) is a technology that is useful to many network administrators because it saves time and money when dealing with network IP addresses. NAT allows a single network device, such as a router or firewall, to act as an agent between the public network space and a private network space. The NAT-enabled agent makes it possible to use a single IP address to represent an entire group of networked computers. NAT also helps network administrators manage the private and public portions of their network because with NAT, administrators can separate the private and public address spaces
