Ericsson WCDMA/HSDPA - Manual (Page 37)

Configuration and Management
2.8 NAT
The Network Address Translation (NAT) service provides the LAN devices
with Internet access. All communication from the LAN to the Internet
appears to come from the IP address of the Ericsson W20. In this way,
details about the local devices remain private and it is not possible to
access a local device directly from the Internet.
Figure 29 NAT page
2.8.1 UPnP IGD
The Ericsson W20 supports the Universal Plug and Play (UPnP) Internet
Gateway Device (IGD) standard. UPnP IGD is used to provide automatic
port forwarding allowing communication between certain Internet
applications and the local network. When UPnP IGD is enabled, programs
like MSN Messenger
®
and most network enabled games are allowed to
pass the NAT service.
To disable UPnP IGD, clear the Enable UPnP check box on the NAT page
and click
Apply .
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