Nortel 120, Using Manual

Page: 92 / 130

92 System configuration management
The security mechanisms that can be employed depend on the level of
security required, the network and management resources available, and
the software support provided on wireless clients.
A summary of wireless security considerations is listed in the "Wireless
security considerations" (page 92) :
Wireless security considerations
Wireless security considerations
Security mechanism Client support Implementation
considerations
WEP Built-in support on all 802.11a
and 802.11b/g devices • Provides only weak security
• Requires manual key
management
WEP over 802.1X Requires 802.1X client support
in system or by add-in software
(support provided in Windows
2000 SP3 or later and
Windows XP) • Provides dynamic key
rotation for improved WEP
security
• Requires configured RADIUS
server
• 802.1X EAP type can
require management of digital
certificates for clients and
server
MAC Address Filtering Uses the MAC address of
client network card • Provides only weak user
authentication
• Management of authorized
MAC addresses
• Can be combined with other
methods for improved security
• Optionally configured
RADIUS server
WPA over 802.1X Mode Requires WPA-enabled
system and network card
driver
(native support provided in
Windows XP) • Provides robust security in
WPA-only mode (that is, WPA
clients only)
• Requires configured RADIUS
server
• 802.1X EAP type can
require management of digital
certificates for clients and
server
WPA PSK Mode Requires WPA-enabled
system and network card
driver
(native support provided in
Windows XP) • Provides good security in
small networks
• Requires manual
management of preshared
key
BAP120
Using the Nortel Business Access Point 120
NN47921-301 01.01 Standard
1.0 August 2006
Copyright © 2006, Nortel Networks Nortel Networks Confidential
.