Addressing for intranets (and the Internet) explained TCP/IP is the networking protocol of the Internet, and by extension of intranets. For TCP/IP to work, your network interfaces need to be assigned IP addresses. Note that we said network interfaces and not computers. The IP addresses are assigned to interfaces and not to computers. So, one computer can have more than one IP address. For example, if you have two network cards on your computer, then each of them can have a different IP address either static or dynamic (more about that in a minute). Similarly, if you have a proxy server running, then the machine on which it is installed should have a static IP address. Now, the same machine has to establish a dial-up link to the Internet through, say VSNL. Then the dial-up adapter would be assigned a different dynamic address. What's an IP address? An IP address is a number that represents a device like a network card uniquely on the Internet or on your company's int...
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