ADTRAN L768 - Manual (Page 37)

Chapter 3: Terminal Menu Operation and Structure
61202192L1-1 Express L768/L1.5 User Manual 21
Security Levels
Each menu item on the configuration screens has an associated security level.
The security level ranges from 0 (highest security level) to 5 (lowest security
level). This level determines whether a Telnet session can access that menu
item. The Telnet session is assigned a security level set by the user. Passwords
can only be accessed as security level 0. The maintenance port is always at se-
curity level 0.
The security levels are assigned as follows:
Level
0 Access all parameters including passwords
1 Access all parameters except passwords
2 Access all parameters except passwords and
authentication methods
3 Access all parameters except passwords,
authentication methods, and ISDN parameters
4 Access only test and status menus
5 Access status menus only