2CHAPTER 1: INTRODUCTION

User support

Supports up to 256 simultaneous users, regardless of mode of

 

operation.

DHCP support

Uses DHCP to obtain a leased IP address and network

 

configuration information from a server. If the network has no

 

DHCP server, the access point’s internal DHCP server assigns IP

 

addresses to wireless clients in a stand-alone wireless network.

SNMP and MIB interfaces

SNMP, HP OpenView, and 3Com Network Supervisor (3NS).

Authentication features

Supports RADIUS authentication between the wireless client and

 

the RADIUS servers, in conjunction with the IEEE 802.1x. For Serial

 

Authentication, requires the 3Com 3CRWE62092A wireless LAN

 

PC card upgraded with the latest firmware.

 

Supports client authentication by MAC address list on access point

 

or on RADIUS server.

802.1x Support

Port-based network access control utilizes the physical

 

characteristics of the switched LAN infrastructures to authenticate

 

devices attached to a LAN port, and prevent access to that port in

 

cases where the authentication process fails.

Encryption

Supports 40-bit and 128-bit shared encryption, and 128-bit

 

dynamic encryption key. Compatible with Cisco and Agere/Lucent

 

access points and clients. Also supports 3Com Dynamic Security

 

Link 128-bit dynamic encryption key.

Management tools

Web server in the access point supports device configuration and

 

management through your web browser. Access point software

 

tools run under Windows 98, 98 SE, Me, 2000, and XP; Windows

 

NT 4.0 with Service Pack 6 or higher;. The 3Com Network

 

Supervisor discovers and displays a map of all Wireless Clients

 

within a segment. Built-in Web server simplifies firmware

 

upgrades. Web-based interface is compatible with Internet

 

Explorer 5.0 or greater and Netscape Communicator 6.0 or

 

greater.

Privacy Mode

Broadcasting of ESSID can be disabled.

Client-to-client blocking

Prevents communication among associated clients, providing client

 

privacy in public access situations.

Installation Overview

1Choose the best place for the installation (flat surface, wall, or acoustical ceiling). Look for a location away from equipment that might cause radio interference. The site should be elevated and centrally located relative to the users on your wireless network.

2Make sure that you are familiar with the following items and have them available where required for your installation:

Access point

3Com Integrated Power-over-Ethernet power supply and power cord

Standard category 5 straight-through (8-wire) Ethernet cable

Mounting hardware (for wall- or ceiling-mount installations)

It may be useful for you to conduct a site survey before permanently installing the access point. See “Conducting a Site Survey” on page 37.

3Install the access point following the steps outlined in “Installing the Access Point” on page 5.

4For information on improving the signal between the access point and a wireless client, see “Selecting A Different Antenna” on page 11.

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3Com 11 Mbps manual Installation Overview, Management tools

11 Mbps specifications

3Com 11 Mbps was a pivotal product in the evolution of networking technology, paving the way for wireless communications as we know them today. Introduced in the late 1990s, this wireless LAN (Local Area Network) product utilized the IEEE 802.11 standard, which defined the protocols for wireless networking. Operating at a maximum data rate of 11 megabits per second, it offered users a revolutionary means of connecting devices without the constraints of physical cabling.

One of the main features of the 3Com 11 Mbps solution was its simplicity and ease of installation. Unlike traditional wired networks that involved intricate setups of cabling and switches, 3Com facilitated a swift deployment process. Users could set up a wireless network in minutes, allowing organizations to enhance their productivity without extensive infrastructure.

The technology behind 3Com 11 Mbps was based on Direct Sequence Spread Spectrum (DSSS) modulation. This approach spread the signal over a wider frequency range, which improved resistance to interference from other devices. The 2.4 GHz frequency band used by this network supported compatibility with various devices, making it a flexible option for businesses and homes alike.

In terms of security, 3Com incorporated Wired Equivalent Privacy (WEP), which aimed to provide a level of data confidentiality comparable to that found in wired networks. However, WEP was later found to have vulnerabilities, leading to the development of more secure protocols like WPA (Wi-Fi Protected Access) and WPA2 in subsequent technologies.

Another characteristic that distinguished the 3Com 11 Mbps system was its ability to support multiple devices simultaneously. With the emergence of wireless laptops, printers, and other peripherals, a single access point could service several users without significant performance degradation.

Ultimately, the 3Com 11 Mbps was a significant stepping stone in the development of wireless technology. It showcased the potential of wireless networking and set the standard for future innovations. Although much faster and more secure wireless technologies have since emerged, the legacy of 3Com 11 Mbps resides in the fundamental advancements it brought to the realm of connectivity, making it easier and more accessible for users around the globe.