IP Pools Question

[Richard J Palmer]

Good Evening


We have FreeRadius 3.0.20 running here quite happily - but have a very 
small issue we' like some help with

Some of our connections use ippools (running from a mssql server)

As a general rule this works exactly as it should

Very occasionally the sql server will time out - maybe once or twice a 
day due to transactions clashing

When this happens the session comes on-line but is not issued a IP.

What I'd ideally like to do is simply reject that connection IF that 
happens which will force the router to log in again - it will then get 
an IP and will be happy

Is there an easy way to catch this and reject the connection (or even 
re-try the ippool module) ?

Thanks in advance

Richard