Configuration; Security - ADTRAN Express L128T S User Manual

Chapter 1. Understanding ISDN and the Express L128T S/T
and mail server requests from the Internet to be translated and for-
warded to this address on the user network.

Configuration

The Express L128T S/T is configured using a menu-based interface.
This interface can be accessed via the maintenance port using any
asynchronous VT 100 terminal or personal computer running a termi-
nal emulation program, or via the LAN using a Telnet client program.
To use the Telnet interface, the Express L128T S/T must first have an
IP address programmed into it via the maintenance port. The factory
default is 10.0.0.1.

Security

Security on network devices is a major concern for almost anyone with
a network. The Express L128T S/T provides many tools for securing
the local network from hostile users. Incoming calls can be authenti-
cated using passwords and Caller ID.* A RADIUS client can also be
used.
The Telnet configuration can also be protected using the same authen-
tication methods. Each menu item in the Express L128T S/T has a se-
curity level associated with it. A Telnet session is assigned a privilege
level which determines which menu items are accessible to the Telnet
client. See Security Levels on page 3-7 (in Chapter 3) for more informa-
tion on menu security levels.
Filters can be defined to prevent certain addresses or protocols from
being transferred from LAN-to-WAN, WAN-to-LAN, or WAN-to-
WAN.
*This feature identifies the calling party number for incoming
calls. This feature may not be functional for all countries or if
calling party information is not supplied by the central office
switch.
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