Internet Connection Sharing
After determining which type of high-speed Internet connection is best for a SOHO LAN, the next decision is how to share the connection among all the PC hosts in a facility. There are several approaches, all of which involve routing data to and from the PC hosts attached to the SOHO LAN. Routing represents a SOHO network of PC hosts as a single IP address to the next-level ISP. They in turn also represent their network as a single IP address to the next-higher-level ISP. This process continues until the highest-level ISP connects into the top-level Internet backbone.
There are two general approaches to connection sharing: a hardware approach requiring the installation of a hardware router, and a software approach requiring ...
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