H3C MSR Series Configuration Guide

9
Configuring WLAN access
The terms AP and fat AP in this document refer to MSR800, MSR 900, MSR900-E, MSR 930, and
MSR 20-1X routers with IEEE 802.11b/g and MSR series routers installed with a SIC WLAN module.
WLAN access overview
A WLAN can provide the following services:
• WLAN client connectivity to conventional 802.3 LANs
• Secured WLAN access with different authentication and encryption methods
• Seamless roaming of WLAN clients in the mobility domain
Terminology
• Client—A handheld computer or laptop with a wireless NIC or a terminal that supports WiFi.
• Access point—An AP bridges frames between wireless and wired networks.
• Fat AP—A fat AP controls and manages all associated wireless stations and bridges frames
between wired and wireless networks.
• Service set identifier—A client scans all networks at first, and then selects a specific SSID to
connect to a specific wireless network.
• Wireless medium—A medium used for transmitting frames between wireless clients. Radio
frequency is used as the wireless medium in the WLAN system.
Client access
A wireless client access process involves three steps: active/passive scanning surrounding wireless
services, authentication, and association, as shown in Figure 1.
Figure 1
Establishing a client access
Scanning
When a wireless client is operating, it usually uses both passive scanning and active scanning to get
information about surrounding wireless networks.
1. Active scanning

H3C MSR Series Specifications

General

Category	Network Router
IPv6 Support	Yes
Dimensions	Varies by model
Weight	Varies by model
Product Type	Modular Router
Ports	Varies by model
WAN Interfaces	Varies by model
Firewall	Yes
QoS	Yes
Wireless Support	Varies by model
USB Ports	Varies by model
Console Port	Yes
Power Supply	Varies by model
Redundancy	Varies by model
Operating Temperature	0°C to 45°C
Storage Temperature	-40°C to 70°C
Humidity	5% to 95% non-condensing
Series	MSR
Certifications	CE, FCC, RoHS