Network organization, structure and physical layou, The internet, Routing ip and ipx – 3Com 520 User Manual
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Routing IP and IPX
A-7
Network Organization, Structure and
Physical Layout
Some organizations are structured into departments
determined by the physical layout of their work
environment, so it is natural to divide the corporate
network into separate logical networks. Routing
becomes the obvious candidate for handling these
individual LANs.
The Internet
The protocol adopted by the Defense Data Network
(DDN) for the Internet, is based on obtaining and
abiding by, a registered Internet address range. This
makes a router the ideal choice for accessing the
Internet. Unfortunately, new applicants are likely to
only get a
Class C
registered Internet address,
preventing more than 254 connections on one
bridged IP LAN.
Routing IP and IPX
Running a bridged network allows workstations to
communicate directly between one another. A PC
user wishing to communicate with a remote network
server is totally unaware of any intervening bridges.
This is known as transparent operation.
Figure A-3
Example Network
Rc.bk : RCAPPA.FRM Page 7 Thursday, July 10, 1997 9:53 AM