Operation Manual

102

06/ CONFIGURING

SECURITY SETTINGS

If needed, to select a port to forward communication to,

select an option in the Forward to Port list box.

3. If a single port or range of ports is selected, a text box

displays. Enter the port numbers.

4. To schedule the rule, select either Always or User Deﬁ ned in

the Schedule list box.

5. Click Add. The rule displays in the Applied Rules section.

6. Click Apply to save changes.

6.3/ PORT TRIGGERING

Port triggering can be described as dynamic port forwarding. By

setting port triggering rules, inbound trafﬁ c arrives at a speciﬁ c

network host using ports that are different than those used for

outbound trafﬁ c. The outbound trafﬁ c triggers the ports where the

inbound trafﬁ c is directed.

For example, a gaming server is accessed using UDP protocol on port

2222. The gaming server then responds by connecting the user using

UDP on port 3333, when a gaming session is initiated.

In this case, port triggering must be used since it conﬂ icts with the

following default ﬁ rewall settings:

• Firewall blocks inbound trafﬁ c by default.

• Server replies to your Gateway IP, and the connection is not sent

back to the host since it is not part of a session.