A network configuration involves executing a user program and analyzer program
on different computers connected by a local area network.
The local configuration involves executing the user program and the analyzer
program on the single computer.
The figure shows the local configuration on the left and the network configuration
on the right.
The local configuration is possible due to to the standard TCP/IP stack function –
TCP loopback. The TCP loopback function allows network applications to
communicate in a standard way within a single computer. The most widely used IP
address in the TCP loopback mechanism is 127.0.0.1. Instead of the numeric
address 127.0.0.1, it is possible to use the symbolic name localhost.
Note: The network configuration does not restrict the client in choosing the OS.
The local configuration limits the client in choosing the OS – only Windows.
2.6 Connecting Multiple Analyzers to Single Computer