Port Triggering - Draytek Vigor2760 series User Manual

After finishing all the settings here, please click OK to save the configuration.
3 . 4 . 4 P o r t T r i g g e
3 . 4 . 4 P o r t T r i g g e
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.
r i n g
r i n g
161 Vigor2760 Series User's Guide