ZyXEL Omni TA 128 User Guide - Page 100

Security Functions

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12 Security Functions The TA128 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 TA128's prestored password list. With a Type 2 connection, the remote terminal will be prompted to enter the password at the initial connection and the local TA128 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 88

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88
12
Security Functions
The TA128 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 TA128’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 TA128 will match the entered password
with the pre-stored password list.
The two types of security are summarized in the table below:
Type 1 Security
Type 2 Security
Remote
(Calling) Site
ZyXEL ISDN device
only
Can be TA of any
brand
Password
Check
Automatic
Interactive
Protocols
Supported
X.75, V.120
Any data protocol
AT Commands
*G1
for Level 1
security
*G2
for Level 2
security
*G3
for Level 1
security
*G4
for Level 2
security
*G5
for Level 3
security