User`s guide

TCP/IP Network Basics

LAN Interface Overview

This section provides an overview of Local Area Networks (LANs) that use

Transmission Control Protocol/Internet Protocol (TCP/IP), including:

! Typical Network Topologies

! LAN Hardware Architecture

Typical Network Topologies

LANs using TCP/IP can be divided into two categories: Site LANs and

Private LANs.

Site LAN Topology A Site LAN can be a workgroup LAN, Intranet, or enterprise (corporate)

LAN. Typically, a site LAN includes several PCs, routers, and servers.

The LAN network is usually administered and controlled by a

System

Administrator

(or network administrator) who installs, monitors, and

troubleshoots the network. This figure shows a portion of a typical site LAN.

DHCP, DNS,

and WINS Servers

Router

Firewall

Typical Site LAN

PCPC

PCPCPC