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Chapter 3: Networking
Illustrations contained in this document are for representation only.
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packet, these applications are designated by their port number. Port 80, the standard HTTP
port, is an example of a port number.
The Networking section of the router performs many elegant functions by recognizing
different packet types based upon their contents, such as source and destination MAC
address, IP address, and ports.
Three Networking Modes
Three Networking ModesThree Networking Modes
Three Networking Modes
Your gateway can be configured to provide connectivity between your cable company and
your home LAN in any one of three Networking Modes: CM, RG, and CH. This mode setting is
under the control of your cable company, who can select the mode to match the level of home
networking support for which you have subscribed. All units ship from the factory set for the
RG mode, but a configuration file which the cable company sends the cable modem section
during its initialization can change it.