ALFA NETWORK AIP-W411 - Manual (Page 55)

AIP-W411 150M Wireless 11N Router
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Figure 4-34 Port Triggering
Once the Router is configured, the operation is as follows:
1. A local host makes an outgoing connection using a destination port number defined in the
Trigger Port field.
2. The Router records this connection, opens the incoming port or ports associated with this
entry in the Port Triggering table, and associates them with the local host.
3. When necessary， the external host will be able to connect to the local host using one of the
ports defined in the Incoming Ports field.
 Trigger Port - The port for outgoing traffic. An outgoing connection using this port will trigger
this rule.
 Trigger Protocol - The protocol used for Trigger Ports, either TCP, UDP, or All (all protocols
supported by the Router).
 Incoming Ports Range - The port or port range used by the remote system when it
responds to the outgoing request. A response using one of these ports will be forwarded to
the PC that triggered this rule. You can input at most 5 groups of ports (or port sections).
Every group of ports must be set apart with ",". For example, 2000-2038, 2050-2051, 2085,
3010-3030.
 Incoming Protocol - The protocol used for Incoming Ports Range, either TCP or UDP, or
ALL (all protocols supported by the Router).
 Status - The status of this entry, either Enabled or Disabled.
To add a new rule, follow the steps below.
1. Click the Add New … button, the next screen will pop-up as shown in Figure 4-35.
2. Select a common application from the Common Applications drop-down list, then the
Trigger Port field and the Incoming Ports field will be automatically filled. If the Common
Applications do not have the application you need, enter the Trigger Port and the
Incoming Ports manually.
3. Select the protocol used for Trigger Port from the Trigger Protocol drop-down list, either
TCP, UDP, or All.
4. Select the protocol used for Incoming Ports from the Incoming Protocol drop-down list,
either TCP or UDP, or All.