ZyXEL Communications 1000 User Manual

 Chapter 50 System

ZyWALL USG 1000 User’s Guide

Connect an external serial modem to the AUX port to provide a 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. 

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

.

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 

Add

Click this to create a new entry. Select an entry and click Add to create a 
new entry after the selected entry. Refer to 

 for 

details on the screen that opens.

Edit

Double-click an entry or select it and click Edit to be able to modify the 
entry’s settings. 

Remove

To remove an entry, select it and click Remove. The ZyWALL confirms 
you want to remove it before doing so. Note that subsequent entries 
move up by one when you take this action.

Move

To change an entry’s position in the numbered list, select the method and 
click Move to display a field to type a number for where you want to put 
it and press [ENTER] to move the rule to the number that you typed.

#

This the index number of the service control rule.

The entry with a hyphen (-) instead of a number is the ZyWALL’s (non-
configurable) default policy. The ZyWALL applies this to traffic that does 
not match any other configured rule. It is not an editable rule. To apply 
other behavior, configure a rule that traffic will match so the ZyWALL will 
not have to use the default policy.

Zone

This is the zone on the ZyWALL the user is allowed or denied to access.

Address

This is the object name of the IP address(es) with which the computer is 
allowed or denied to access.

Action

This displays whether the computer with the IP address specified above 
can access the ZyWALL zone(s) configured in the Zone field (Accept) or 
not (Deny).

Apply

Click Apply to save your changes back to the ZyWALL. 

Reset

Click Reset to return the screen to its last-saved settings. 

Table 239   Configuration > System > SNMP (continued)