User guide

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Chapter 4 - ProxyServer Software
Adding an Optional DCE Device
In the application shown below, the ProxyServer has been configured for both a 56K DSU leased
line connection to the Internet, and an RS232/V.35 connection via the WAN 2 port (i.e., external
modem, T1 CSU, etc.). Each WAN port can be configured with a unique User Name and
Password or, as in this application, can be configured to use Multi-Link PPP (see, Enabling Multi-
Link PPP, in this chapter for more details). The LAN users at the various workstations on the LAN
share dial-up services to the Internet and the ProxyServer maintains secure access to the
network from the Internet.
LAN Connection
IP Address 192.168.0.101
Mask 255.255.255.0
Internet
56K DSU
Connection
Optional DCE Device Connection
(external modem, T1 CSU, etc.)
Novell Server
IP Address
192.168.0.102
Windows NT Server
IP Address
192.168.0.103
Mail Server
IP Address
192.168.0.104
Workstation
IP Address
192.168.0.105
Workstation
IP Address
192.168.0.106
Workstation
IP Address
192.168.0.107
HUB
TM
TM
DSU ProxyServer
Figure 4-2. Application with optional DCE Device
In the typical application above, the default settings for the LAN Port, 56K DSU Port and the
WAN 2 (RS232/V.35) Port were configured during installation and loaded into the ProxyServer at
the conclusion of the setup.
The IP Address that was entered during setup is the IP address of the ProxyServer
(192.168.0.101).
The WAN ports were configured during setup so that both the WAN 1 (DSU) and WAN 2 ports
are enabled.