Ericsson W3X - Manual (Page 53)

Configuration and Management
1/1551-CRH 102 168 Uen Rev A 2008-12-16 47
3.7 NAT
The Ericsson W3x includes a NAT (Network Address Translation) service.
With this service several computers on a LAN/WLAN can share the same
Internet connection using a single public IP address.
Devices on the LAN/WLAN use dedicated private IP addresses, which
cannot be used on the Internet. When a computer on the LAN/WLAN want
to send a data package to the Internet, its IP address is automatically
translated by NAT to an external (public) IP address allowed on the
Internet. When a reply receives to this external IP address, it is translated
back to the origin private IP address to be able to found its way back to the
sending computer on the LAN/WLAN.
In this way, details about the local devices remain private and it is not
possible to access a local computer on the LAN/WLAN directly from the
Internet.
The NAT page includes the following settings:
Figure 37 - NAT page