User's Manual

Table Of Contents
47
7. Configuring a Cordless Gateway Network
This chapter describes how to configure the Cordless Gateway to allow
Symphony-enabled computers to share a high-speed Internet connection
and/or communicate with devices on a wired Ethernet network. In addition,
this chapter includes instructions for how to share files between computers
using the Maestro Configuration Tool and how to print to a network printer.
Cordless Gateway Configuration
From within the Symphony Maestro Configuration Tool, a user may config-
ure the TCP/IP parameters and operating mode of the Cordless Gateway.
These options are described in detail below. In addition, refer to the section
entitled, “Configuration Examples,” to help you determine what configura-
tion changes, if any, are required for your network devices.
Configuring the Topology Parameter
The Cordless Gateway performs two important networking functions:
Network Address Translation (NAT) and Transparent Bridging. NAT allows
the Cordless Gateway to share a high-speed Internet connection with its
cordless clients using a single IP Address assigned by the ISP.
Transparent Bridging allows Symphony-enabled cordless computers to
communicate with wired Ethernet computers as if all devices, wired and
cordless, were attached to the same physical network. In reality, the Sym-
phony Cordless Network and the wired Ethernet network use two different
methods to communicate: one sends messages over a cable and the other
sends messages over radio waves. However, when the Cordless Gateway is
connected to both networks and is operating in Transparent Bridging mode,
all devices, wired and cordless, appear to be on the same Local Area Network
(LAN). This allows devices to share network resources, such as files or
printers, with one another. The Cordless Gateway acts as the intermediary
between the two networks.
When performing NAT, the Cordless Gateway also acts as an intermediary
between networks, but the two networks will not appear to be on the same
LAN. Therefore, a computer on one network will not have direct access to
the shared files or printer of a computer on the second network. When
performing NAT, a Cordless Gateway uses two IP Addresses: one address
assigned by the ISP to communicate with the Internet and one to communi-
cate with the Symphony-enabled client computers. For information on the IP