sqlippool --> ip's expiring and being allocated again

[Fajar A. Nugraha]

On Thu, Oct 17, 2013 at 4:35 PM, Petre Bandac <petre at kgb.ro> wrote:

> >   No amount of poking FreeRADIUS will fix a broken NAS.
>
> Freeradius sits behind a pppoe server
>
> Rephrasing my question: I want to detect the lost ppp connections (I
> suppose there is a timeout set somewhere) and delete the ip from
> radippool without waiting the lease-time set in radius (something like
> the check dhcp does with the handled ip addresses)
>
>
If you can detect "lost ppp connections", then configure FR is easy. If you
CAN'T detect it, then IMHO it's a sign of broken NAS, and as Alan put it,
"No amount of poking FreeRADIUS will fix a broken NAS."

A sane NAS would usually have some kind of method of notifying radius that
a particular connection is still alive. Usually this is in the form of
interim-update. FR can then be configured (if not already done so, can't
remember from the back of my head) to extend the lease time whenever it
receives interim update for a particular user, so that the IP will still be
(correctly) marked as used. Sending the lease time to be around twice or
three times interim update interval should be enough.

-- 
Fajar
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