Alliant Networks CGW101, Руководство пользователя

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Introduction Example applications
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Internet, no special software is needed on the computers or devices inside or outside
the gateway. (Devices connected to the gateway through the Ethernet or serial ports or
through wireless association are considered to be
inside the gateway. Computers
connected to the Internet (but not to the gateway itself) are considered to be outside the
gateway.)
The gateway is well-suited for local area network (LAN) applications where Internet
connectivity is required and alternative connections are not available due to technical or
economic constraints, or to the need for mobility.
You can set up a LAN quickly and easily using the gateway in its default configuration.
The gateway performs Network Address Translation (NAT) to support a full IP
subnetwork with one cellular connection. Connections to the outside must be initiated by
an inside device, providing protection against unsolicited connection. Once a connection
is established, data can flow in both directions.
• Serial passthrough
The Cellular Gateway extends the serial interface across the cellular network to IP-based
protocols, so that sensing, mechanical, and control devices can report to Internet
computers. The connection protocol is configurable (TCP or UDP). The gateway does
not interpret or change serial data.
Example applications
• Mobile LANs
The Cellular Gateway is not tethered to any wired infrastructure, so you can create an
instant personal network with Internet connectivity wherever needed. Because it works
anywhere that has cellular-with-data service, it can be installed in mobile environments
such as trucks, recreational vehicles, and even boats.
• Convenience LANs