3com WX2200 3CRWX220095A User Manual

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20
M
ANAGING
 K
EYS
 
AND
 
C
ERTIFICATES
A digital certificate is a form of electronic identification for computers. 
The WX switch requires digital certificates to authenticate its 
communications to 3Com Wireless Switch Manager and Web Manager, 
to WebAAA clients, and to Extensible Authentication Protocol (EAP) 
clients for which the WX performs all EAP processing. Certificates can be 
generated on the WX or obtained from a certificate authority (CA). Keys 
contained within the certificates allow the WX, its servers, and its wireless 
clients to exchange information secured by encryption.
If the switch does not already have certificates, MSS automatically 
generates the missing ones the first time you boot using MSS Version 4.2 
or later. You do not need to install certificates unless you want to replace 
the ones automatically generated by MSS. (For more information, see 
“Certificates Automatically Generated by MSS” on page 418.)
Before installing a new certificate, verify with the display timedate and 
display timezone commands that the WX switch is set to the correct 
date, time, and time zone. Otherwise, certificates might not be installed 
correctly.
Why Use Keys and 
Certificates?
Certain WX switch operations require the use of public-private key pairs 
and digital certificates. All 3Com Wireless Switch Manager and Web 
Manager users, and users for which the WX performs IEEE 802.1X EAP 
authentication or WebAAA, require public-private key pairs and digital 
certificates to be installed on the WX switch. 
These keys and certificates are fundamental to securing wireless, wired 
authentication, and administrative connections because they support 
Wi-Fi Protected Access (WPA) encryption and dynamic Wired-Equivalency 
Privacy (WEP) encryption.