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Table 211 System > SNMP (continued)
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44.11 Dial-in Management
Connect an external serial modem to the DIAL BACKUP port to provide a remote
management connection in case the ZyWALL's other WAN connections are down. This is
like an auxiliary interface, except it is used for management connections coming into the
ZyWALL instead of as a backup WAN connection.
44.11.1 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.
44.11.2 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.
44.11.3 Response Strings
The response strings tell the ZyWALL the tags, or labels, immediately preceding the various
call parameters sent from the serial modem. The response strings have not been standardized;
please consult the documentation of your serial modem to find the correct tags.
44.12 Dial-in Mgmt Configuration
Click System > Dial-in Mgmt to display the following screen. Configure this screen for dial-
in management connections.
ZyWALL 1050 User's Guide
DESCRIPTION
Click Apply to save your changes back to the ZyWALL.
Click Reset to begin configuring this screen afresh.
Chapter 44 System Remote Management
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