Adtran L128 用户手册

Chapter 3: Terminal Menu Operation and Structure

61202.070L1-1

Express L128/L128T User Manual

• When originating an outgoing call:

- Express L128/L128T uses PPP method configured in

.

- Authenticatee’s username is compared to profile used to dial.

• Authenticating with RADIUS:

- When Configuration/Security/Authentication is set to Radius,

authentication is performed by the RADIUS server.

- The Express L128/L128T uses the DEFAULT Connection List 

profile for all other parameters not supported by RADIUS
attributes.

- RADIUS attributes currently supported are: framed ip, framed net-

mask, framed ipx network, framed routing, framed compression, 
and idle timeout.

2.

The Express L128/L128T as the authenticatee:

• When answering an incoming call:

- If the Configuration/Security/Authentication parameter is set 

to None, the DEFAULT profile’s Tx Username and Tx Password
are used by the Express L128/L128T for authenticating itself.

- If the Configuration/Security/Authentication parameter is set 

to Connection List or RADIUS, the Express L128/L128T will wait
until the PPP peer is authenticated before authenticating itself 
(except when CHAP or EAP is used). If CHAP or EAP is used, the
username transmitted by the PPP peer’s authentication challenge
packet is looked up in the Connection List. If found, the Express
L128/L128T responds with the profile’s Tx Username and Tx
Password

 parameters. If not found, the DEFAULT profile’s Tx

 and Tx Password parameters are used.

• When originating an outgoing call:

- The dial-out profile Tx Username and Tx Password are used 

regardless of the PPP peer’s username received if CHAP or EAP
is used.

Write security: 2; Read security: 3
This parameter specifies how the Express L128/L128T is to be authenticated 
by the PPP peer.  There are four possible selections. See Security/PPP on 
page 58 for an explanation of the three PPP standard authentication types.

 (def) - The connection will not allow the PPP peer to 

authenticate it.