NetModule NB224x, Руководство пользователя

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User Manual NetBox Wireless Router
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4-Jan-10
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3.1.5.2 NAPT
This page lets you set the options for Network Address and Port Translation (NAPT). NAPT is a feature that
translates TCP or UDP communications made between hosts on a private network and hosts on a public
network. It allows a single public IP address to be used by many hosts on the private network, which is usu-
ally called a Local Area Network or LAN.
3.1.5.2.1 NAPT on Mobile Interface
Port forwarding is the act of forwarding a network port from one network node to another. This technique can
allow an external user to reach a port on a private IP address (inside the LAN) from the outside (Internet).
Parameter Description
NAPT status Enable or disable NAPT
NAPT needs to be enabled normally (i.e. when using Internet Access). Internet Ser-
vice Providers will not route your private LAN Addresses.
Service name: User-defined Name for the NAPT entry
External port: External IP port (mobile interface)
Local host: Check this box to forward traffic to local host service (Webserver, SSH, Telnet)
To forward traffic to an external host in the LAN provide the host address below.
Host address: Host to which the traffic will be forwarded
Internal port: Port to which the traffic will be forwarded
Protocol: Protocol (UDP or TCP) to which this entry applies.
Enabled: Enable (Yes) or disable (No) the entry.