LevelOne FBR-1407, Руководство пользователя, Страница: 34 / 92

34
4.5.1 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 .
For example, if you have an FTP server (port 21) at 192.168.123.1, a Web server (port 80) at
192.168.123.2, and a VPN server at 192.168.123.6, then you need to specify the following virtual
server mapping table:
Service Port Server IP Enable
21 192.168.123.1 V
80 192.168.123.2 V
1723 192.168.123.6 V