Dynamic IP addressing
If we have a network of few
computers attached to it and if the organization of the network is static ( the computers
are attached to the network all the time), it's easiest to assign IP address to every
computer from the block of addresses supplied by InterNIC.
Managing IP addresses, however, can get
quite cumbersome if the network has many computers or if the network configuration changes
constantly, thanks to users logging on to the network configuration to the network
remotely ( using, say, the Dial-Up Networking accessory )or computers being moved from
subnet to another. One way to solve this problem to assign IP addresses to network
computer dynamically. In other words, when a computer log on to the network, it is
assigned an IP address from pool of available addresses. When the computer logs off, the
addresses it was using is returned to the pool.
The system that manages this dynamic
allocation of addresses is called Dynamic Host Configuration Protocol (DHCP), and
the computers that implement DHCP are called DHCP serves, Windows95
supports DHCP via either Windows NT DHCP servers on the network, or PPP dial-up routers.