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2014•Applied Mechanics and MaterialsRequires access

The Special Treatment of NAT

Zhao Li Wu

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Abstract

NAT (Network Address Translation) is the process of transforming one IP address in the datagram header into another. In practical applications, NAT is mainly used to realize the function of the access of private network to public network. The method of using a small number of public IP addresses representing a large quantity of private IP addresses will help to slow down the depletion of the IP address space available. As the Network Architecture is becoming more complex, the way, under such context, the NAT technology functions is of great importance. This dissertation will mainly analyze the special treatment of NAT in the following aspects like unified address management ,the priority level of address pool ,NAT mapping in PING Operation ,the treatment of ICMP err packet ,the NAT transformation of fragmented packet as well as the infinitive connection of multi –core products.

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What this paper is about

NAT (Network Address Translation) is the process of transforming one IP address in the datagram header into another. In practical applications, NAT is mainly used to realize the function of the access of private network to public network. The method of using a small number of public IP addresses representing a large quantity of private IP addresses will help to slow down the depletion of the IP address space available. As the Network Architecture is becoming more complex, the way, under such context, the NAT technology functions is of great importance. This dissertation will mainly analyze the special treatment of NAT in the following aspects like unified address management ,the priority level of address pool ,NAT mapping in PING Operation ,the treatment of ICMP err packet ,the NAT transformation of fragmented packet as well as the infinitive connection of multi –core products.

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Available abstract

NAT (Network Address Translation) is the process of transforming one IP address in the datagram header into another. In practical applications, NAT is mainly used to realize the function of the access of private network to public network. The method of using a small number of public IP addresses representing a large quantity of private IP addresses will help to slow down the depletion of the IP address space available. As the Network Architecture is becoming more complex, the way, under such context, the NAT technology functions is of great importance. This dissertation will mainly analyze the special treatment of NAT in the following aspects like unified address management ,the priority level of address pool ,NAT mapping in PING Operation ,the treatment of ICMP err packet ,the NAT transformation of fragmented packet as well as the infinitive connection of multi –core products.

Key concepts: Network address translation, Nat, NAT traversal, IP address management, Internet Control Message Protocol, Network address, Datagram, Computer network

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