Ii-4-4 Port Triggering - Draytek Vigor3910 Series User Manual

After finishing all the settings here, please click OK to save the configuration.
I I - 4 - 4 P o
I I - 4 - 4 P
Port Triggering is a variation of open ports function.
The key difference between "open port" and "port triggering" is:
Once the OK button is clicked and the configuration has taken effect, "open port" keeps

the ports opened forever.
Once the OK button is clicked and the configuration has taken effect, "port triggering"

will only attempt to open the ports once the triggering conditions are met.
The duration that these ports are opened depends on the type of protocol used. The

"default" durations are shown below and these duration values can be modified via
telnet commands.
TCP: 86400 sec.
UDP: 180 sec.
IGMP: 10 sec.
TCP WWW: 60 sec.
TCP SYN: 60 sec.
Vigor3910 Series User's Guide
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