3com 3CRWE850075A Manuel D’Utilisation

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address of one or more domain name servers. Enter those addresses in Primary 
DNS Address and Secondary DNS Address fields.

This option controls whether Secure Socket Layer (SSL) technology is used to encrypt 
information between the computer and the device during a configuration session. By 
default this option is Off. When this option is turned on, the HTTPS protocol is used, 
and data is protected during the configuration session. When it is turned off, the HTTP 
protocol is used, and data could be intercepted during the configuration session.

Changing this option causes the device to reset, which disrupts the network association 
temporarily, but does not affect device configuration settings that have already been 
saved. 

The RADIUS page lets you define servers to be used for authentication and 
accounting. RADIUS (Remote Access Dial-In User Service) is a login authentication 
protocol that uses software running on a central AAA (Access, Authentication, and 
Accounting) server to control access to RADIUS compliant devices on the network. 
There are no special settings on the access point to distinguish between the various 
RADIUS policies or authentication types (for example EAP-MD5, EAP-TLS, 
EAP-TTLS). These policies are setup and controlled on the AAA server. Note that for 
most RADIUS software packages, the access point is actually called the “RADIUS 
client” and has a shared secret or secret key corresponding to the RADIUS setup page 
(see KEY parameter below).

The access point can send connection parameters to a RADIUS server, as well as 
statistics for accounting purposes. The access point is compatible with RFC2866 (the 
RADIUS Accounting specification).

Configuring a secondary RADIUS server provides a backup in case the primary server 
fails. The access point will use the secondary server if a failure is detected in the 
primary server. Once the access point switches over to the secondary authentication 
server, it periodically attempts to establish communication again with primary 
authentication server. Once communication is established, the secondary 
authentication server reverts back to a backup server. The access point will use the 
secondary accounting server if a failure is detected in the primary accounting server. It 
will continue to use the secondary accounting server until it fails, in which case it 
returns to sending data to the primary accounting server.