ZyXEL Communications 480 - Manual (Page 88)

Prestige 480 ISDN Router
6-12 Dial-In Server Configuration
6.4.2 CLID Authentication
CLID (Calling Line IDentification) authentication affords you the security of limiting a user to
only initiate connections from a fixed location. The Prestige uses the caller ID sent by the switch to
match against the CLIDs in the database. Please note that for CLID authentication to work on the
Prestige, your telephone company must support caller ID.
6.4.3 Callback
Callback serves two purposes. One is security. When set to callback to a fixed number, an intruder
will not gain access to your network even if he/she stole the password from your user, because the
Prestige always calls back to the pre-configured number.
The other is ease of accounting. For instance, your company pays for the connection charges for
telecommuting employees and you use your Prestige as the dial in server. When you turn on the
callback option for the dial-in users, all usage is charged to the company instead of the employees,
and your accounting department can avoid the hassles of accountability and reimbursement.
Configuring the Prestige for Callback
In this scenario, LAN 1 first calls LAN 2, then LAN 2 calls back to LAN 1. These are the
respective SMT menus.
LAN 1
Figure 6-10 LAN 1 LAN-to-LAN Application
Menu 11.1 - Remote Node Profile
Rem Node Name= LAN_2
Active= Yes
Call Direction= Both
Incoming:
Rem Login= lan2
Rem Password= *******
Rem CLID=
Call Back= No
Outgoing:
My Login= lan1
My Password= ********
Authen= CHAP/PAP
Pri Phone #= 1234
Sec Phone #=
Edit PPP Options= No
Rem IP Addr= 192.168.2.1
Edit IP= No
Telco Option:
Transfer Type= 64K
Allocated Budget(min)=
Period(hr)=
Carrier Acess Code=
Nailed-Up Connection= N/A
Toll Period (Sec)= 0
Session Options:
Edit Filter Sets= No
Idle Timeout(sec)= 100
Enter here to CONFIRM or ESC to CANCEL:
Set Call Direction
and Call Back to
Both and No
respectively.