DHCP server sometimes not found

[Sameer Verma]

On Wed, Jan 21, 2009 at 1:18 PM, Gavin McCullagh <gmccullagh at gmail.com> wrote:
> Hi,
>
> On Wed, 21 Jan 2009, Sergio Dicandia wrote:
>
>> No luck with DHCP ... it still doesn't give more than 4 (or 5 at best)
>> addresses and then it freezes ....
>> I did the tcpdump as suggested, you can find it attached ...
>
> I think you need to include it in plain text.  That attachment seems not to
> have made it through the mailing list server.
>
>> Now I'm thinking to replace the DHCP server, but I need something on the
>> server itself, or on a device (the router, maybe) since I cannot ask the
>> teacher to:
>
>> 1- start a service machine (acting as a DHCP server)
>> 2 - wait until it's up&running
>> 3 - start the server
>> 4 - start the TCs
>
> Since you reported the issue, so did Lars Andersson on ltsp-users.  He
> found that by placing the DHCP server on a different machine the issue went
> away.  I'd guess there's an issue with the standard dhcp server on ubuntu.
>
> http://sourceforge.net/mailarchive/forum.php?thread_name=A1777BE3AA0AB44ABADA6FF66BA594ED6C358F0F61%40vkex.vindeln.se&forum_name=ltsp-discuss
>
> If you want to get this going, I'd suggest a dhcp server on another
> machine (it worked for Lars).  If you have time to try it, it would be
> great if you could try to put a different dhcp server (udhcpd or dnsmasq)
> on the thin client server.
>
>> Way too tricky for people used to switch on a general button and have all the PCs running (OK, WindowsME, but)
>> What about a router ? I also need to assign fixed IPs to specific MAC adddresses to be able to use iTalc ...
>>
>> :-(  I'm very sad about this ....
>
> You're not alone.  But I think we're on the right track now.  I know it's
> slow, but we'll get it fixed.
>
> Gavin
>
>
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FYI: I just booted my lab of 32 Dell Optiplexes into Intrepid LTSP
fatclients. All clients got DHCP leases and booted up to the gdm
screen. I turned each machine on myself with approximately a one
second delay.

Sameer
-- 
Dr. Sameer Verma, Ph.D.
Associate Professor of Information Systems
San Francisco State University
San Francisco CA 94132 USA
http://verma.sfsu.edu/
http://opensource.sfsu.edu/