Operation Manual

DC-214/216 ADSL Homestation
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5.6.3 NAT Configuration
The NAT Configuration page allows the user to set the configuration for the Network
Address Translation. NAT feature allows multiple users to access Internet through a single
IP account, sharing the single IP address from ISP.
The default setting is Dynamic NAPT. It provides dynamic Network Address Translation
capability between LAN and multiple WAN connections, and the LAN traffic is routed to
appropriate WAN connections based on the destination IP addresses and Route Table. This
eliminates the need for the static NAT session configuration between multiple LAN clients
and multiple WAN connections. When the Dynamic NAPT is chosen, there is no need to
configure the NAT Session and NAT Session Name Configuration.
The NAT option only maps single WAN IP address to the local PC IP address. It is peer to-
peer mapping. (1x1) For each WAN interface, only one local PC IP address can be
associated with each WAN interface. Click the link Session Name Configuration to add
the session name for WAN interface.
The NAPT option maps the single WAN IP addresses to many local PCs IP addresses.
(1xN). It is the multiple-mapping mechanism. For each WAN Interface, more than one
local PCs can be associated with one WAN Interface. Click the link Session Name
Configuration to add the session name for WAN interface.