Authenticated device does not receive and IP, so continuously requests IP allocation

Alan DeKok aland at
Fri Oct 30 13:49:52 CET 2015

On Oct 30, 2015, at 8:41 AM, Sophie Loewenthal <sophie.loewenthal at> wrote:
>    For a few weeks some devices have had their IP allocation "lost" en route.  They authenticate, and IP is allocated but not received by the device.

  There are a few steps between authentication and the device receiving the IP.

  Is FreeRADIUS *sending* the correct IP?  If so, the problem is the NAS.  Nothing you do to FreeRADIUS will help.

  If not, then you can fix FreeRADIUS.

>  Afterwards a device continuously asking for an IP address, being allocated, and then asking again.
> This has happened intermittently with some devices on Vodafone APN. I did not see devices on other APNs affected.

  Then it's probably the vodafone APN which is dropping the IP.

> Please see the three Radius requests in debug mode at the end of this email in attachments. They are small files of approx 10Kb and were collected with options to radiusd -xxx

  And not "radiusd -X", which is suggested in the FAQ, "man" page, web pages, and daily on this list.

  Which means you can't see what's in the Access-Request, or what's in the Access-Accept.  That information is *critical* to solving the problem.

  PLEASE follow the documentation.

  Alan DeKok.

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