User's Manual

Administrative Guide Configuration
Figure 6-12-2. Advanced Setup – NAT – Virtual Servers – Add
6.4.4.2 Port Triggering
Some applications require that specific port(s) in the Router's firewall be opened for
access by the remote parties. Port Trigger dynamically opens up the 'Open Ports' in the
firewall when an application on the LAN initiates a TCP/UDP connection to a remote
party using the 'Triggering Ports'. The Router allows the remote party from the WAN
side to establish new connections back to the application on the LAN side using the
'Open Ports'. (Figure 6-13-1, 6-13-2)
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