Tcp/Ip; Easy Installation And Management - NETGEAR DG814 Reference Manual

Reference Manual for the Model DG814 DSL Modem Internet Gateway

TCP/IP

The Model DG814 gateway supports the Transmission Control Protocol/Internet Protocol (TCP/
IP) and Routing Information Protocol (RIP).
For further information about TCP/IP, refer to
• IP Address Masquerading by Dynamic NAT+
The Model DG814 gateway allows several networked PCs to share an Internet account using
only a single IP address, which may be statically or dynamically assigned by your Internet
service provider (ISP). This technique, an extension of Network Address Translation (NAT), is
also known as IP address masquerading and allows the use of an inexpensive single-user ISP
account.
• Automatic Configuration of Attached PCs by DHCP
The Model DG814 gateway dynamically assigns network configuration information,
including IP, gateway, and domain name server (DNS) addresses, to attached PCs on the LAN
using the Dynamic Host Configuration Protocol (DHCP). This feature greatly simplifies
configuration of LAN-attached PCs.
• DNS Proxy
When DHCP is enabled and no DNS addresses are specified, the router provides its own
address as a DNS server to the attached PCs. The router obtains actual DNS addresses from
the ISP during connection setup and forwards DNS requests from the LAN.
• PPP over Ethernet (PPPoE) and PPP over ATM (PPPoA)
PPPoE and PPPoA are protocols for connecting remote hosts to the Internet over an always-on
connection by simulating a dial-up connection.

Easy Installation and Management

You can install, configure, and operate the Model DG814 DSL Modem Internet Gateway within
minutes after connecting it to the network. The following features simplify installation and
management tasks:
• Animated installation assistant
The Resource CD contains an animated installation assistant to guide you through set up.
• Browser-based management
Browser-based configuration allows you to easily configure your gateway from almost any
type of personal computer, such as Windows, Macintosh, or Linux. A user-friendly Setup
Wizard is provided and online help documentation is built into the browser-based Web
Management Interface.
1-4
Appendix B, "Networks and Routing Basics."
Introduction