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Chapter 3. Terminal Menu Operation and Structure
61200176L3-1 Express 4110/4120 User Manual 3-37
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
association 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 perma-
nently 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
authentication of the PPP peer and for being authenticated by the PPP
peer.
Authentication is applied between the Express 4110/4120 and the PPP
peer as follows:
1. The Express 4110/4120 as the authenticator:
• When answering an incoming call:
• Express 4110/4120 uses PPP method configured in Configura-
tion/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 User-
name is blank.
When answering a call, the Express 4110/4120 does not know who the PPP peer is until the
authentication phase is completed. Two PPP protocols (EAP and CHAP) require the authenti-
cator to transmit a username which the authenticatee uses to cross reference the password to
use. Since the PPP peer is unknown before the authentication phase is over, the Express 4110/
4120 uses the Tx Username in the DEFAULT profile to identify itself. If Tx Username is
blank, Configuration/System Info/System Name is used. If that is blank, then the word
“ADTRAN” is used.