Konig Electronic WLAN router 300 Mbps - Manual (Page 26)

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Virtual Server
The NAT firewall of this product filters out unrecognized packets to protect your Intranet, so all hosts
behind this product are invisible to the outside world. If you wish, you can make some of them
accessible by enabling the Virtual Server mapping.
A virtual server is defined as a Service Port, and all requests to this port will be redirected to the
computer specified by the Server IP. The Virtual Server can work with Schedule Rules, and gives the
user more flexibility on access control. For details, please refer to Schedule Rule.
Special AP
Some applications require multiple connections, like Internet games, video conferencing, Internet
telephony, etc. Because of the firewall function, these applications cannot work with a pure NAT router.
The Special Applications feature allows some of these applications to work with this product. If the
mechanism of Special Applications fails to make an application work, try setting your computer as the
DMZ host instead.
1. Trigger: the outbound port number issued by the application.
2. Incoming Ports: when the trigger packet is detected, the inbound packets sent to the specified port
numbers are allowed to pass through the firewall.