Binding Map Lists And Server Lists; Ip Setup - Netopia R2020 User Reference Manual

The Local WAN IP Address is used to configure a NAT public address range consisting of the Local WAN IP
Address and all its ports. The public address map list is named Easy-PAT List and the port map list is
named Easy-Servers .
When you exit this screen the two map lists, Easy-PAT List and Easy-Servers, are created by default and
NAT configuration becomes effective.This will map all your private addresses (0.0.0.0 through
255.255.255.255) to your public address. These map lists are bound to the Easy Setup Profile. See
"Binding Map Lists and Server Lists" on page
This is all you need to do if you want to continue to use a single PAT, or 1-to-many, NAT configuration.
In order to configure the router to make servers on your LAN visible to the Internet, you use advanced
features in the System Configuration screens, described in
Note: There is no implicit binding between the WAN IP interface address and NAT, as in earlier firmware
versions, so you cannot disallow configuration of NAT simply because the interface is numbered or disallow
configuration of the addressing type (numbered or unnumbered) simply because NAT is enabled.
If the router has a numbered interface, then it is addressable by the IP address. With PAT, when NAT was
enabled the interface would be marked unnumbered and the IP address subsumed by NAT. However, NAT would
allow traffic directed to that IP address to be delivered to the router. This effectively made the interface a
numbered interface. MultiNAT adds the option of true unnumbered NAT. Traffic delivered to the router on an
unnumbered interface which cannot be processed by NAT is dropped.
I I I I P P P P s s s s e e e e t t t t u u u u p p p p
To access the NAT configuration screens, from the Main Menu navigate to IP Setup:
Main
Menu
Multiple Network Address Translation and IP Setup 10-5
10-18.
System
Configuration
"IP setup" on page
Network
Protocols Setup
10-5.
IP
Setup