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This product's NAT firewall 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. Virtual Server can work with Scheduling Rules, and give user more flexibility
on Access control. For Detail, please refer to Scheduling Rule.
2.3.2.2 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.
This product provides some predefined settings Select your application and click "Copy to" to add the
predefined setting to your list.
Note! At any given time, only one PC can use each Special Application tunnel.
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