Network Address Translation for Inbound Connections in Paradigm of Private Network

Manjinder Singh, Dr. Mohita Mohita


Internet is a default communication channel for business and is growing worldwide. With this expansion of internet,
secure data communication between multiple sites connected via public channels is very important. For this purpose virtual
private network is the most widely used tunnel. NAT let an organization to use public network to convey private data by using
strong authentication & encryption techniques. Information Technology has begun to implement Network Address Translation
(NAT) and private addressing for our open-use networks. This technology allows several computers to share one public Internet
address at the same time. Only a single IP address is required to represent one or more computers to the rest of the world. To
contain growth of routing overhead, an Internet Service Provider obtains a block of address space from an address registry, and
then assigns to its customers addresses from within that block based on each customer’s requirement. Libraries are subscribing
online journals and books more and more these days. Publishers are providing user based and IP based authentications. To access
the digital material outside the IP restricted area, NAT is essential to designed in such a fashion to have secure and reliable
connectivity. In this research work, secure connections are developed using Network Address Translation (NAT).

Keywords: NAT, IP, ISP, LAN.

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