RADIUS Sending Duplicate Reply

[Arran Cudbard-Bell]

> This question maybe a bit off from RADIUS, but is there a way to limit NAS or RADIUS to send only one access-request/access-accept in a single dial attempt? i am connecting via PPPoE. I can see from RADIUS logs receiving multiple access-request thus it is also giving multiple access-accept. How do i prevent this?

By configuring the NAS correctly... FreeRADIUS is behaving exactly as the standards say it should, see RFC 2865 and RFC 5080 regarding duplicate packets and the response cache.

> Coz it is causing an issue "connection is terminated because the remote server did not respond in a timely manner". Then I have to redial again coz the IP does not get assigned to the client.

No.... it's not causing that, thats a result of either a backend database being slow to respond, and lossy link between the RADIUS server and the NAS, or the timeout period on the NAS being set too low.

This is absolutely not a FreeRADIUS issue, it's a problem with your NAS.

-Arran

Arran Cudbard-Bell
a.cudbardb at freeradius.org

RADIUS - Half the complexity of Diameter

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