Ovislink Air Live Air3GII User Manual page 41

3.Installation/Un-installation
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:
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AirLive Air3GII User's Manual