Port Triggering - TP-Link TL-MR6400 User Manual

4.10.2 Port Triggering

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Some applications require multiple connections, like internet games, video conferencing,
internet telephoning and so on. Port Triggering is used for some of these applications that
cannot work with a pure NAT Router.
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
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

supported by the router).
Incoming Port - 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 section). Every group of
ports must be set apart with ",". For example, 2000-2038, 2050-2051, 2085, 3010-3030.
Incoming Protocol

ALL (all protocols supported by the router).
Status - The status of this entry is either

To add a new rule, follow the steps below.
1. Click the Add New...
Port Triggering, you can view and add port triggering in the next screen.
Incoming Ports field.
- The protocol used for Incoming Ports Range, either
button, the next screen will pop-up.
Enabled or Disabled.
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TL-MR6400 User Guide
All (all protocols
TCP or UDP, or