[K12OSN] dhcpd failed

John Lucas mrjohnlucas at gmail.com
Wed May 28 18:13:44 UTC 2008


Marc Fromm wrote:
> There is another dhcp server on the network for windows machines to get
> an IP that is why I am running the ltsp by assigning MAC addresses to
> IPs.
> 

What may be happening is that *both* DHCP servers are attempting to 
respond to the request from this machine, but only one of them (the LTSP 
-based DHCP server) has all the needed boot information. You have 
restricted on DHCP server, but how have you restricted the other?

> The client is connecting to my ltsp server since I see the mac address
> in the message log using tail -f.
> 
> I just tried a third system and it works just fine like the first.
> 
> I am assuming it is the NIC in th system that fails, even though the NIC
> worked fine when the box was a windows system.
> 
> -----Original Message-----
> From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On
> Behalf Of Rob Owens
> Sent: Wednesday, May 28, 2008 10:09 AM
> To: Support list for open source software in schools.
> Subject: Re: [K12OSN] dhcpd failed
> 
> Are you sure there's not another DHCP server on the network?  And are 
> you sure you want to be assigning public IP addresses to these machines?
> 
> -Rob
> 
> Marc Fromm wrote:
>> I am experiencing limited success with K12LTSP.
>> I installed K12LTSP Cent OS 5 EL from the ISO download.
>> In the dhcpd-k12ltsp.conf file I commented the range line and I am
>> setting up systems by Mac address and fixed IP address.
>>
>> This system boots with no problems
>> host finaid70 {
>>   hardware ethernet 00:B0:D0:C3:0C:A6;
>>   fixed-address 140.160.216.111;
>>   filename "/lts/pxe/pxelinux.0";
>> }
>>
>> This system begins booting.
>> Tail -f /var/log/messages states a "dhcpoffer" to the mac address
>> 00:50:70:76:25:EA.
>> The client eventually displays ERROR! dhcpd failed!
>> host finaid71 {
>>   hardware ethernet 00:50:70:76:25:EA;
>>   fixed-address 140.160.216.228;
>>   filename "/lts/pxe/pxelinux.0";
>> }
>>
>> The failed systems NIC as reported on during the client boot is a
> Rhine
>> II fast Ethernet. But since it is communicating with the ltsp server,
> I
>> assume the NIC is fine.
>>
>> How can dhcpd fail on one system and work on the other?
>>
>> Marc
>>
>> _______________________________________________
>> K12OSN mailing list
>> K12OSN at redhat.com
>> https://www.redhat.com/mailman/listinfo/k12osn
>> For more info see <http://www.k12os.org>
> ********************************************************
> 
> The information transmitted is intended only for the person or entity to
> which it is addressed and may contain confidential and/or privileged
> material. If you are not the addressee, any disclosure, reproduction,
> copying, distribution, or other dissemination or use of this
> transmission in
> error please notify the sender immediately and then delete this e-mail.
> E-mail transmission cannot be guaranteed to be secure or error free as
> information could be intercepted, corrupted lost, destroyed, arrive late
> or
> incomplete, or contain viruses.
> The sender therefore does not accept liability for any errors or
> omissions
> in the contents of this message which arise as a result of e-mail
> transmission. If verification is required please request a hard copy
> version.
> 
> ********************************************************
> 
> 
> _______________________________________________
> K12OSN mailing list
> K12OSN at redhat.com
> https://www.redhat.com/mailman/listinfo/k12osn
> For more info see <http://www.k12os.org>
> 
> _______________________________________________
> K12OSN mailing list
> K12OSN at redhat.com
> https://www.redhat.com/mailman/listinfo/k12osn
> For more info see <http://www.k12os.org>


-- 
         "History doesn't repeat itself; at best it rhymes."
                         - Mark Twain

| John Lucas                MrJohnLucas at gmail.com               |
| St. Thomas, VI 00802      http://mrjohnlucas.googlepages.com/ |
| 18.3°N, 65°W              AST (UTC-4)                         |




More information about the K12OSN mailing list