Security Functions; Security Types And Levels - ZyXEL Communications ACCESSING INTERNET & INTRANET omni series User Manual

13

Security Functions

The omni provides security functions that may be enabled to prevent
unauthorized connections. Two types of security functions are
provided.

Security Types and Levels

Type 1 security is to be used when the remote TA is a ZyXEL ISDN
TA.
Type 2 security is to be used with non-ZyXEL remote TA's.
With a Type 1 connection, the dial-in (remote) TA will send in its
supervisor password for matching with the local omni's pre-stored
password list. With a Type 2 connection, the remote terminal will be
prompted to enter the password at the initial connection and the local
omni will match the entered password with the pre-stored password
list.
The two types of security are summarized in the table below:
Remote (Calling)
Site
Password Check
Protocols
Supported
AT Commands
Type 1 Security
ZyXEL ISDN device
only.
Automatic
X.75, V.120
*G1 for Level 1
security
*G2 for Level 2
security
Type 2 Security
Can be TA of any
brand.
Interactive
Any data protocol
*G3 for Level 1
security
*G4 for Level 2
security
*G5 for Level 3
security
Security Functions 93