NETGEAR DG814 DSL manual Tcp/Ip, Easy Installation and Management

Reference Manual for the Model DG814 DSL Modem Internet Gateway

The Model DG814 gateway incorporates Auto UplinkTM technology (also called MDI/MDIX). Each LOCAL Ethernet port will automatically sense whether the Ethernet cable plugged into the port should have a 'normal' connection (e.g. connecting to a PC) or an 'uplink' connection (e.g. connecting to a router, switch, or hub). That port will then configure itself to the correct configuration. This feature also eliminates the need to worry about crossover cables, as Auto UplinkTM will accommodate either type of cable to make the right connection.

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 Appendix B, “Networks and Routing Basics.”

•IP Address Sharing by 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, known as Network Address Translation (NAT), 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 PCs on your local network.

•DNS Proxy

When DHCP is enabled and no DNS addresses are specified, the gateway provides its own address as a DNS server to the attached PCs. The gateway 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)

PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an always-on connection by simulating a dial-up connection. This feature eliminates the need to run a login program such as Entersys or WinPOET on your PC.

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:

1-4 Introduction