3com 520 User Manual

 

 

 

 

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 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 

 

 registered Internet address, 

 

preventing more than 254 connections on one 

 

bridged IP LAN.

 

 

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.

 

 

Example Network

Rc.bk : RCAPPA.FRM  Page 7  Thursday, July 10, 1997  9:53 AM