Installation Guide

Table Of Contents
Task 15: Configuring a RADIUS server
RADIUS Device Re-authentication
PMP 450i systems include support for periodic SM re-authentication in a network without
requiring the SM to re-register (and drop the session). The re-authentication may be
configured to occur in the range of every 30 minutes to weekly.
Figure 71 Device re-authentication configuration
The re-authentication interval is only configurable on the AP. When this feature is enabled,
each SM that enters the network will re-authenticate each the interval time has expired
without dropping the session. The response that the SM receives from the AAA server upon
re-authentication is one of the following:
Success: The SM continues normal operation
Reject: The SM de-registers and will attempt network entry again after 1 minute and
then if rejected will attempt re-entry every 15 minutes
Timeout or other error: The SM remains in session and attempt 5 times to re-
authenticate with the RADIUS-REQUEST message. If these attempts fail, then the SM
will go out of session and proceed to re-authenticate after 5 minutes, then every 15
minutes.
Although re-authentication is an independent feature, it was designed to work alongside
with the RADIUS data usage accounting messages. If a user is over their data usage limit
the network operator can reject the user from staying in the network. Operators may
configure the RADIUS ‘Reply-Message’ attribute with an applicable message (i.e. “Data
Usage Limit Reached”) that is sent to the subscriber module and displayed on the general
page.
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pmp-0957 (April 2015)