Level 3 Security; Table B-2. Levels Of Security; Setting And Modifying Passwords - NETGEAR XM128 ISDN Reference Manual

Level 3 Security

After the password is matched, the local modem prompts the remote user to enter a callback
number.
The three levels of security are summarized in
Table B-2. Levels of security
Level 1
Password Check Yes
CPN Check OK N/A
and S119.6=0
CPN Check OK N/A
and S119.6=1
CPN unmatched N/A
CPN not Available N/A
AT Commands *G1 for Type 1
*G3 for Type 2

Setting and Modifying Passwords

The AT*Hn command (where n represents the index to the entry) can define 40 user passwords.
Numbers between 0 and 39 are accepted.
The corresponding 40 callback numbers are defined by the AT&Zn=xxx command, where n
represents the index to the entry and xxx represents the assigned callback phone number. Any
character (ASCII 0-127) can be used in the password table. The maximum password length is eight
characters for each entry.
The security functions are accessible only through AT commands in terminal mode. A supervisory
password is required for adding or modifying the entries. The default supervisor password is
NETGEAR when the Model XM128 modem is shipped from the factory. This supervisory
password is sent to the remote user if Type 1 security is set at the remote end.
To modify the supervisor password, use the command AT*HS.
Security Functions
Reference Guide for the Model XM128 ISDN Digital Modem
Table B-2.
Level 2 Level 3
Yes Yes
Call back Prompts the remote
user to enter callback
number for calling
Keep the
back
connection
Disconnect
Call back using the
corresponding
prestored number
*G2 for Type 1 *G5 for Type 2
*G4 for Type 2
B-3