(RADIATOR) Re: DefaultLeasePeriod

Mon Aug 19 11:08:26 CDT 2002

Hello Ingvar,

I think perhaps it will depend heavily on the capabilities of the NAS itself 
to do such a thing. If you are talking Cisco here, the NAS has all the same 
capabilities as a standard router. At least I can recall a setup we did once 
in the past where we allowed DHCP broadcast queries to "leak" from one LAN 
across a serial link and on the other side, to the DHCP server. There was a 
command named 'ip helper address' I think, don't recall very well, though. 
Perhaps this is a starting point for your quest :)  Now, if you are talking 
about other NAS brands here, I won't be able to help.

regards,
cl.

>From: "Ingvar Berg (EAB)" <Ingvar.Berg at era.ericsson.se>
>To: radiator at open.com.au
>Subject: RE: (RADIATOR) Re: DefaultLeasePeriod
>Date: Mon, 19 Aug 2002 16:18:26 +0200
>
>Just thought that it would be A Nice Thing, if the NAS could act as a DHCP 
>relay, and leave it to the client and the DHCP server to do this the 
>standard way. (A Nice Thing usually exists already, and can be found, you 
>just have to know where to search ;-).
>
>/Ingvar
>
> > -----Original Message-----
> > From: Hugh Irvine [mailto:hugh at open.com.au]
> >
> > Hello Ingvar -
> >
> > No I have never seen such a thing.
> >
> > This is because the end client device must start a session
> > (usually PPP)
> > *before* it can send TCP/UDP packets.
> >
> > regards
> >
> > Hugh
> >
> >
> > On Monday, August 19, 2002, at 11:41 PM, Ingvar Berg (EAB) wrote:
> >
> > > Does anyone know how to set up clients, NAS etc to make the
> > client use
> > > a DHCP server at the ISP? Is it as simple as doing a normal DHCP
> > > configuration in the client, and then set up your DHCP
> > server? Or do
> > > you have to configure the NAS as well? Because such a setup
> > would allow
> > > the client to renew its own IP address according to the lease time
> > > configured in the DHCP server.
> > >
> > > /Ingvar
> > >
> > >>  -----Original Message-----
> > >> From: 	aitayemi at metrong.com [mailto:aitayemi at metrong.com]
> > >>
> > >> Hi Hugh,
> > >>
> > >> One, I assume the checkattribute ( Service-Type =
> > >> Framed-User,Time ="Al0000-2400",Simultaneous-Use = 1)
> > >> implies "always-on 24-7-365" access for the user?
> > >>
> > >> My aim is to allow clients with DSL access
> > >> (alwayson-24-7-365) to remain on without radiatior reclaiming the
> > >> IP address allocated to them while they are still connected.
> > >>
> > >> What combination of attributes do you think can handle
> > >> clients with DSL access (alwayson-24-7-365) and dial-up
> > >> access so that the IP address is not reclaimed for the DSL
> > >> clients while they are still connected - and still reclaim
> > >> the IP addresses allocated to the dial-up/DSL clients when
> > >> they disconnect by themselves from the NASes?
> > >>
> > >> Would setting the Defaultleaseperiod to "infinity" ( :-) or
> > >> say a year, and leaving the LeaseReclaimInterval set to
> > >> (say) a day handle the kind of configuration I mentioned
> > >> above? That is, correctly reclaim the IPaddresses for clients
> > >> when they are disconnected (by NAS, attributes, etc) and also
> > >> not reclaim the IP addresses allocated to clients
> > >> that are still online.
> > >>
> > >> Regards,
> > >> Tunde Itayemi.
> > >>
> > >>
> > >> ----- Original Message -----
> > >> From: Hugh Irvine <mailto:hugh at open.com.au>
> > >> To: Ayotunde Itayemi <mailto:aitayemi at metrong.com>
> > >> Cc: radiator at open.com.au <mailto:radiator at open.com.au>
> > >> Sent: Monday, August 19, 2002 12:31 PM
> > >> Subject: (RADIATOR) Re: DefaultLeasePeriod
> > >>
> > >>
> > >> Hello Tunde -
> > >>
> > >> The IP address in the address pool is marked as available
> > >> when the DefaultLeasePeriod expires.
> > >>
> > >> There is no relationship between the Session-Timeout on the
> > >> NAS and the DefaultLeasePeriod for the IP address allocation.
> > >> You will have to manage any relationship that you wish to
> > >> have with your configuration.
> > >>
> > >> regards
> > >>
> > >> Hugh
> > >>
> > >>
> > >>
> > >> On Monday, August 19, 2002, at 06:09 PM, Ayotunde Itayemi wrote:
> > >>
> > >>
> > >>
> > >> Hi Hugh, Hi All,
> > >>
> > >> What happens when the DefaultLeasePeriod  (say 86400 = 1
> > day) expires?
> > >> Does the user get disconnected and the IP allocated to
> > >> him/her reclaimed?
> > >> Or is the user (correctly) allowed to stay connected?
> > >>
> > >> Let's assume that the checkattribute of the clients specifies
> > >> that he/she
> > >> can stay on for the whole day (Service-Type =
> > >> Framed-User,Time ="Al0000-2400",Simultaneous-Use = 1)
> > >>
> > >> Regards,
> > >> Tunde I.
> > >>
> > >>
> > >>
> > >>
> > --
> > Radiator: the most portable, flexible and configurable RADIUS server
> > anywhere. Available on *NIX, *BSD, Windows 95/98/2000, NT, MacOS X.
> > -
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> > flexible with hardware, software, platform and database independence.
> > >>
> > >>
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