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Static NAT

Sep 09,2009 by alperen

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Static translation involves permanently mapping an inside local address to an inside global address. For most organizations, this would be reserved for those network servers shared with the outside world that, therefore, need to keep the same address. This is particularly true for servers, such as web or e-mail servers, that will have domain name translations in DNS servers. Any change in their global address results in missed traffic until the DNS server system is fully resolved to the change. This might take the form of those dreaded 404 Page Not Found Errors when searching the Web.

Except in the smallest of networks, or those with few users authorized to go out into the Internet, static NAT isn’t a suitable implementation for users because it requires a one-for-one ratio of real addresses to inside addresses.

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