ZyXEL Communications MWR222 - V1.0 Manual page 138

replace the LAN computer's IP address in the forwarding port with another LAN
computer's IP address.
Trigger port forwarding solves this problem by allowing computers on the LAN to
dynamically take turns using the service. The MWR222 records the IP address of
a LAN computer that sends traffic to the WAN to request a service with a specific
port number and protocol (a "trigger" port). When the MWR222's WAN port
receives a response with a specific port number and protocol ("incoming" port),
the MWR222 forwards the traffic to the LAN IP address of the computer that sent
the request. After that computer's connection for that service closes, another
computer on the LAN can use the service in the same manner. This way you do
not need to configure a new IP address each time you want a different LAN
computer to use the application.
To change your MWR222's trigger port settings, click Network > NAT >
Advanced. The screen appears as shown.
Note: Only one LAN computer can use a trigger port (range) at a time.
Figure 87 Network > NAT > Advanced
The following table describes the labels in this screen.
Table 55 Network > NAT > Advanced
LABEL DESCRIPTION
# This is the rule index number (read-only).
Name Type a unique name (up to 15 characters) for identification purposes.
MWR222 User's Guide
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