ZyWALL 2 Series User’s Guide

 

Table 6-9 Dial Backup Setup

 

 

LABEL

DESCRIPTION

 

 

Configure Budget

Select this check box to have the dial backup connection on during the time that

 

you select.

 

 

Allocated Budget

Type the amount of time (in minutes) that the dial backup connection can be used

 

during the time configured in the Period field. Set an amount that is less than the

 

time period configured in the Period field.

Period

Type the time period (in hours) for how often the budget should be reset. For

 

example, to allow calls to this remote node for a maximum of 10 minutes every

 

hour, set the Allocated Budget to 10 (minutes) and the Period to 1 (hour).

Idle Timeout

Type the number of seconds of idle time (when there is no traffic from the

 

ZyWALL to the remote node) for the ZyWALL to wait before it automatically

 

disconnects the dial backup connection. This option applies only when the

 

ZyWALL initiates the call. The dial backup connection never times out if you set

 

this field to "0" (it is the same as selecting Always On).

Apply

Click Apply to save your changes back to the ZyWALL.

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

 

6.11 Advanced Modem Setup

6.11.1 AT Command Strings

For regular telephone lines, the default “Dial” string tells the modem that the line uses tone dialing. “ATDT” is the command for a switch that requires tone dialing. If your switch requires pulse dialing, change the string to “ATDP”.

For ISDN lines, there are many more protocols and operational modes. Please consult the documentation of your TA. You may need additional commands in both “Dial” and “Init” strings.

6.11.2 DTR Signal

The majority of WAN devices default to hanging up the current call when the DTR (Data Terminal Ready) signal is dropped by the DTE. When the “Drop DTR When Hang Up” check box is selected, the ZyWALL uses this hardware signal to force the WAN device to hang up, in addition to issuing the drop command “ATH”.

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WAN Screens