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3.3.4.2 Port Triggering
If you configure port triggering for a certain application, you need to determine a so-called
trigger port and the protocol (TCP or UDP) that this port uses. You then assign the public
ports that are to be opened for the application to this trigger port. You can select known
Internet services or assign ports or port blocks manually.
Add port Triggering
To set up port triggering for a service, select Port Triggering from the Advanced
Settings
Select the required application from the applications list.
If the application you require is not in the list, you must enter the relevant data on the
screen custom application
Trigger port start and Trigger port end: Enter the port that is to be monitored for
outgoing data traffic.
Trigger protocol: Select the protocol that is to be monitored for outgoing data traffic.
Open Protocol: Select the protocol that is to be allowed for incoming data traffic
Open port start and Open port end: Enter the port that is to be opened for incoming
traffic.
Note:
You can use a single port number, several port numbers separated by commas, port blocks
consisting of two port numbers separated by a dash, or any combination of these, for
example 80, 90-140, 180.
Apply the settings by clicking "save/apply"
Remove port Triggering
Check remove box
Apply setting by click Save/Apply
NAT
Port Triggering
Figure:
add
Port Triggering
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