Draytek VigorBX 2000 Series, Руководство пользователя

Страница: 169 / 777

VigorBX 2000 Series User’s Guide 157
I
I
I
I
-
-
3
3
-
-
4
4
P
P
o
o
r
r
t
t
T
T
r
r
i
i
g
g
g
g
e
e
r
r
i
i
n
n
g
g
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.
Available settings are explained as follows:
Item Description
Comment Display the text which memorizes the application of this
rule.
Triggering Protocol Display the protocol of the triggering packets.
Triggering Port Display the port of the triggering packets.
Incoming Protocol Display the protocol for the incoming data of such triggering
profile.
Incoming Port Display the port for the incoming data of such triggering
profile.
Status Display if the rule is active or de-active.
Click the index number link to open the configuration page.