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7. Click
Next
. The
NAT setting
s appears.
8. Modify the settings if desired. All settings are optional.
Network Address Translation (NAT) allows you to share one Wide Area Network (WAN) IP address for multiple computers on
your Local Area Network (LAN). If you do not want to enable NAT (atypical) and wish the user of this gateway to access the
Internet normally, you need to add a route on the uplink equipment. Failure to do so will cause access to the Internet to fail.
The fields on this page are explained in the following table.
FIELD NAME
DESCRIPTION
Enable NAT
Enable sharing the WAN interface across multiple devices on the LAN.
Also enables the functions in the NAT sub-menu and addition PPPoE NAT
features to select.
Enable Fullcone NAT
(
Appears when
Enable NAT
is selected
) Enables what is known as one-to-
one NAT.
Enable SIP ALG
(
Appears when
Enable NAT is selected
) Enables Session Initiation Pro-
tocol (SIP) pass-through NAT. Used for Voice over IP (VOIP) applications.
Enable Firewall
Enables functions in the
Security
sub-menu