ADTRAN Express L128, User Manual

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Chapter 3: Terminal Menu Operation and Structure
64 Express L128/L128T User Manual 61202.070L1-1
Connection List/Description
Write security: 3; Read security: 4
The description is a text string that identifies the profile.
Connection List/Active
Write security: 3; Read security: 4
When set to
Yes (def), this profile is used for authentication and user associa-
tion of incoming calls. Setting to No is the same as deleting the item but allows
the information of the profile to be saved.
To delete an unused profile, use the D key when the cursor is over the number in the
Num
column. Once deleted, the profile is gone permanently as soon as the Connection
List is saved. Items may be deleted when DEL appears below the status bar.
Connection List/Authentication
The authentication menu contains the required parameters for the authentica-
tion of the PPP peer and for being authenticated by the PPP peer.
Authentication is applied between the Express L128/L128T and the PPP peer
as follows:
1. The Express L128/L128T as the authenticator:
• When answering an incoming call:
- Express L128/L128T uses PPP method configured in
Configuration/Security/PPP .
- Authenticatee’s username is looked up in all active
Connection List profiles ( Rx Username ).
- If found, the Rx Password is used for authenticating.
- If not found, DEFAULT entry’s Rx Password is used if
Rx Username is blank.
When answering a call, the Express L128/L128T does not know who the PPP peer is
until the authentication phase is completed. Two PPP protocols (EAP and CHAP) re-
quire the authenticator to transmit a username which the authenticatee uses to cross
reference the password to use. Since the PPP peer is unknown before the authentica-
tion phase is over, the Express L128/L128T uses the Tx Username in the DEFAULT
profile to identify itself. If Tx Username is blank, Configuration/System Info/Sys-
tem Name is used. If that is blank, then the word “ADTRAN” is used.