Motorola SURFBOARD SVG2500 - Manual (Page 84)

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5 SVG2500 BASIC PAGES
The SVG2500 Basic Pages allow you to view and configure SVG2500
IP-related configuration data, including Network Configuration, WAN
Connection Type, DHCP, and DDNS. The Backup option allows you to
save a copy of your SVG2500 configuration on your PC.
You can click any Basic submenu option to view or change the
configuration information for that option.
Basic Setup Page
This page allows you to configure the basic features of your SVG2500 gateway
related to your ISP connection.
Field Description
NAPT mode NAPT is a special case of NAT, where many IP numbers are hidden
behind a number of addresses. In contrast to the original NAT, however,
this does not mean there can be only that number of connections at a
time.
In NAPT mode, an almost arbitrary number of connections is multiplexed
using TCP port information. The number of simultaneous connections is
limited by the number of addresses multiplied by the number of available
TCP ports.