HP R110, Руководство по настройке и администрированию

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100 NAT configuration
NAT settings
The Settings page includes the global NAT enable for all VLANs on the router. If NAT is
disabled on this page, the NAT features for all VLANs are also disabled.
Turning off NAT does not affect the firewall functions.
Virtual server settings
This function allows you to route external (Internet) calls for services, such as a web server (port
80), FTP server (port 21), or other applications, through your router to your internal network.
Because your internal computers are protected by a firewall, machines from the Internet cannot
reach them because they cannot be “seen.” If you need to configure the Virtual Server function
for a specific application, you need to contact the application vendor to find out which port
settings you need. To manually enter settings, enter the IP address in the space provided for the
internal machine, the port type (TCP or UDP), and the private and public port(s) required to
pass traffic. Then click
Add and Save . You can only pass one port per private IP address.
Opening ports in your firewall can pose a security risk. HP recommends that you disable the
settings when you are not using a specific application. A maximum of 20 rules can be defined.
This page includes the following settings:
Private IP
The IPv4 address of the computer on the local network.