ZyXEL Communications U-336E, Руководство пользователя

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Special Functions 31
5
Special Functions
This chapter describes special features of the U-336E, and offers
instructions on how each is used.
Security Functions
Your modem provides a security function that prevents
unauthorized users from making connections. Two types of
security functions are provided.
•
Type 1 security is used when the remote modem is also a
ZyXEL modem.
•
Type 2 security is used when the remote modem is any other
brand.
The type 1 connection, the dial-in remote modem will send in its
supervisor password for checking at the initial connection , and the
local modem will check this password against its pre-stored
acceptable password list.
The type 2 connection, the remote terminal will be prompted to
enter the password at the initial connection and the local modem
will do the password checking.
Levels of Security
Two levels of security are provided: