UNDERSTANDING CONFIGURATION PARAMETERS
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NetDSL 1700 Version 5.2 Get Started User’s Guide
A. UNDERSTANDING
CONFIGURATION PARAMETERS
When you order Internet service, your Internet provider will give you a
great amount of information. A list of the information presented to you
by the remote network you will be dialing (ISP, company server, POP
account) is provided to you in the section titled “
Information You Will
Need
.” Definitions of common configuration terms are available
below. Please note that terminology used by various remote networks
may vary.
Explaining IP Addresses
LAN IP Address
In the most basic terms, the Primary LAN IP address is the logical
location of the NetDSL router on the local Ethernet network. If there is
another subnet in the Ethernet network you would like NetDSL to be
able to access, you can specify a Secondary LAN IP Address.
DNS Server IP Address
The IP address of the primary DNS (Domain Name System) server
should be assigned by the ISP. Specifying a secondary DNS server
IP address is optional.
NAT IP Address
Network Address Translation (NAT) IP Address is a Public IP
Address. It can be a single, fixed Public IP address, or an ISP
assigned Public IP address. NAT is used to translate Private IP
addresses to a Public IP address. Many Private IP addresses can be
translated through the single Public NAT IP address. The router
keeps track of all the translation traffic so that information arriving at
the single NAT IP Address can seamlessly be forwarded to the
appropriate Private IP address.
DHCP IP Address Assignment
Dynamic Host Control Protocol (DHCP) IP Address Assignment is a
method the router uses to dynamically assign LAN IP addresses
within its local network. The router has a subnet (range) of available
LAN IP addresses with which to assign to other network devices on
its local network. It “leases” these LAN IP addresses for a user-
defined amount of time. After the lease time expires, the LAN IP
address is made available for assigning to other network devices.
