NetComm N3G002W - Manual (Page 35)

YML894 Rev1 N3G002W 3G Wireless Router User Guide N3G002W 3G Wireless Router User Guide
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Forwarding Rules
The Forwarding Rules page allows you to configure the port forwarding management on the unit. Click on any
of the menu on the left to access the respective setting page.
Forwarding rules are a necessary feature as by default NAT (Network Address Translation) will automatically
block incoming traffic from the Internet to the LAN if a specific port mapping does not exists in the NAT
translation table. Because of this, the NAT provides a level of protection for computers that are connected to
your LAN. However, this also creates a connectivity problem when you want to make LAN resources available
to Internet clients, which you may want to do to play network games or host network applications.
There are three ways to work around NAT and to enable certain LAN resources available from the Internet; Port
Forwarding (in Virtual Server page), Port Triggering (in Special AP page) and DMZ Host (in Miscellaneous page).