Freeradius-Users Digest, Vol 99, Issue 94

Koka Krishna kkrish at
Wed Jul 31 14:15:57 CEST 2013

   3. Re: only 2 dynamic IPs are allocated even the ip pool has
      many IPs (Alan DeKok)

Hi Alan,
Can you help me what changes do I need to do to get the new dynamic IP addresses for new sessions instead of duplicate IP addresses.
I am not able to understand your answer fully.

# key:
        #       The key to use for the session database (which
        #       holds the allocated ip's) normally it should
        #       just be the nas ip/port (which is the default).
        #       If your NAS sends the same value of NAS-Port
        #       all requests, the key should be based on some
        #       other attribute that is in ALL requests, AND
        #       is unique to each machine needing an IP address.
       # key = "%{NAS-IP-Address} %{NAS-Port}"<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Venkata Krishna


Message: 3
Date: Tue, 30 Jul 2013 08:00:24 -0400
From: Alan DeKok <aland at>
To: FreeRadius users mailing list
	<freeradius-users at>
Subject: Re: only 2 dynamic IPs are allocated even the ip pool has
	many IPs
Message-ID: <51F7AAD8.90004 at>
Content-Type: text/plain; charset=ISO-8859-1

Koka Krishna wrote:> I am using the freeradius 2.2.0 on ubuntu.
> When I try to use the dynamic IP pool allocation, RADIUS server is 
> allocating only 2 IPs . afterwards those 2 IPs repeated for other 
> subscribers as well. So that I am not able to create more than 2 sessions.
> May I know how to resolve this issue?

  Read raddb/modules/ippool.  Look for the "key" attribute.  Both the problem and the solution are documented there.

  i.e. if you're using a module, it helps to read the module configuration.

> ippool main_pool {

  So... you posted the stock module configuration to the list.  Why?
Did you think we don't have a copy of it?

  And you didn't bother reading it.


  Alan DeKok.


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