Chapter 6.2: Advanced Voice over DSL Configuration
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5.6.6 Configuring Triggers
A trigger allows an application to open a secondary port in order to transport
packets. The most common applications that require secondary ports are FTP and
NetMeeting. Triggers are mandatory for these applications to work with NAT of
other security options.
This section assumes that you have enabled Security and defined at least 1
security interface.
To configure a trigger, go to the Policies, Triggers and Intrusion Detection section
of the Security Interface Configuration. Click on Firewall Trigger Configuration.
The Firewall Trigger Configuration page is displayed.
5.6.6.1 Adding Triggers
To add a trigger, click on the New Trigger link. The Firewall Add Trigger page is
displayed.
A list of options is displayed for configuring the Trigger.
Allow Multiple Hosts: Select
allow if you want a secondary session to be
initiated to/from different remote hosts. Select block
if you want a secondary session to be initiated only
to/from the same remote host. Default allow.
Max Activity Interval:
Type the maximum interval time (in milliseconds)
between the use of secondary port sessions. Default
10000.
