Fixed IP

Guy Davies aguydavies at gmail.com
Wed Jun 28 13:33:52 CEST 2006


Hi Mahesh,

This is *totally* independent of the authentication process.  You
don't need to do anything to the RADIUS server to do this.

You need a DHCP server.  When your client (the PC) is attached to a
particular subnet, it will request a DHCP address by sending a
broadcast to find a DHCP server.  The DHCP server will see the MAC
address from which the request was sent and, if a one-to-one mapping
between that MAC address and an IP address exists in the config files
for the DHCP server, it will return that IP address.

The RADIUS server's job is over well before that happens (except for
any accounting it may do).

Rgds,

Guy

On 28/06/06, Mahesh S Kudva <mahesh.kudva at robosoftin.com> wrote:
> Thanks for the guidance.
>
> how can i use the post-auth section??
>
> Regards & Thanks
> ================
> Mahesh S Kudva
>
>
> -----Original Message-----
> From: Phil Mayers <p.mayers at imperial.ac.uk>
> To: FreeRadius users mailing list <freeradius-users at lists.freeradius.org>
> Date: Tue, 27 Jun 2006 10:30:37 +0100
> Subject: Re: Fixed IP
>
> > Mahesh S Kudva wrote:
> > > Hi
> > >
> > > I am running Freeradius on Mac OS X. How do i assign fixed IP address
> > to
> > > my wireless clients who are authenticating under Apple BAse
> > stations??
> >
> > You can't with radius. 802.11 clients assign IP addresses by DHCP after
> > the link, so you would need to configure the DHCP server appropriately.
> >
> > (In theory one could push an IP from FreeRadius into the DHCP server
> > e.g. in the post-auth section with an exec module, but that would be a
> > custom solution you'd have to make yourself)
> > -
> > List info/subscribe/unsubscribe? See
> > http://www.freeradius.org/list/users.html
>
>
>
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