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3.3.2.1 Virtual Server
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 .
3.3.2.2 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