Example 3. multiple secure lans – AT&T DEFINITY 555-230-223 User Manual

Page 152

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Appendix E: Sample Customer Configurations

Example 3. Multiple Secure LANs

DEFINITY LAN

System

Gateway 2

C3

Host name = lgateserver
IP address = 135.20.1.1
Subnet mask = 255.255.255.0

IP address = 135.20.1.200
Subnet mask = 255.255.255.0

C2

Host name = client 3
IP address = 135.20.3.1
Subnet mask = 255.255.255.0

Default gateway = 135.20.1.100

(The route to 135.20.3 network
is 135.20.1.200.)

Default

C1

Host name = client 1
IP address = 135.20.2.1
Subnet mask = 255.255.255.0

Host name = client 2
IP address = 135.20.2.2
Subnet mask = 255.255.255.0

Gateway

IP address = 135.20.1.100
Subnet mask = 255.255.255.0

IP address = 135.20.2.100
Subnet mask = 255.255.255.0

Assembly

IP address = 135.20.3.100
Subnet mask = 255.255.255.0

Gateway

This sample configuration shows the DEFINITY LAN Gateway system assembly
with three different clients on networks physically different from that of the
DEFINITY LAN Gateway system assembly. The default gateway leads to clients
C1 and C2, and gateway 2 leads to client C3. This sample configuration requires
that the DEFINITY LAN Gateway system assembly and the clients be
administered, as follows:

DEFINITY LAN Gateway system assembly:

1. From the Main Menu, choose TCP/IP Administration. Then choose

This Host.

A. Change the host name to a name you have made up

(

lgateserver in this example).

B. Do the same for the host IP address (

135.20.1.1 in this

example) and, if subnetting is used, the subnet mask
(

255.255.255.0 in this example).

2. From the TCP/IP Administration Main Menu, choose Local Host

Table.

A. Delete the default client.

B. Press

ADD

to access the Add Host screen. Add the host

name and IP address for client 1 (C1).

Issue 1 January 1996

E-5

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