In small networks, all systems are connected to
the same network cable:
The communication between any 2 systems uses the standard
components of Windows Networking:
When working on system#1 (using the Network CLIENT) and
accessing data on System#2 (made available via a Network SERVER)
, the connection is made via the Network-protocols and Network
Adapters on both systems.
But networks grow, requiring the use of MULTIPLE Network cables
or the need for different types of Network Media (like: modems,
Now, some systems (like #2 above) have multiple Network Adapters and any communications from system#1 to #3 and #4 has
to go via System#2, which has now the additional job of
forwarding/passing on Network communication.
Such a forwarding is called : Routing
Now, additional functionality in the Windows Networking is
The PROTOCOL component of the Router (#2 above) needs to be able
to handle this forwarding. Now the proper selection of the Network
protocol is important:
- NetBEUI is NOT able to route and CANNOT be used in such
- IPX/SPX and TCP/IP allow routing.
There can be multiple Routing on Networks:
and when using TCP/IP on the Internet, there can be 10 or more
routers involved for a connection to a specific site.