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<p>please make sure that firewall is not blocking the messages on the redhat server. Stop the firewall and check it out.</p>
<p> </p>
<p>#iptables -L</p>
<p>#service iptables stop</p>
<p> </p>
<p>Sundar</p>
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<div style="DIRECTION: ltr" id="divRpF682086"><font color="#000000" size="2" face="Tahoma"><b>From:</b> dhcp-users-bounces@lists.isc.org [dhcp-users-bounces@lists.isc.org] on behalf of Eugčne Ngontang [sympavali@gmail.com]<br>
<b>Sent:</b> 18 July 2014 17:40:41<br>
<b>To:</b> Users of ISC DHCP<br>
<b>Subject:</b> Re: DHCP Server not sending offers!<br>
</font><br>
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<div dir="ltr">Hi Sten,
<div><br>
</div>
<div>My dhcp version : V3.0.5-RedHat</div>
<div><br>
</div>
<div>Clients and server operating system : fedora and redhat respectively.</div>
<div><br>
</div>
<div>@Bruce, exactly, I'm searching where the buttleneck is. But it is on the server, sure. Client has no problem.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Eugčne NG</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">2014-07-18 13:58 GMT+02:00 Glenn Satchell <span dir="ltr">
<<a href="mailto:glenn.satchell@uniq.com.au" target="_blank">glenn.satchell@uniq.com.au</a>></span>:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
Hi Eugène<br>
<br>
Are the dhcp server and clients physical systems or virtual? What<br>
operating system are the server and clients?<br>
<br>
What version is dhcpd? This will be in the startup message in the logs, of<br>
use dhcpd --version<br>
<br>
What happens if you comment out one of the host statements so that the<br>
client gets a dynamic lease?<br>
<br>
regards,<br>
-glenn<br>
<div><br>
On Fri, July 18, 2014 9:48 pm, Eugène Ngontang wrote:<br>
> @Sten, I saw discover whiwh do not receive offers on client and server<br>
> side.<br>
><br>
> The clients and server are in the same LAN, nothing between them.<br>
><br>
> And I said when I restart the server, it begins answer discovers.<br>
><br>
> Regards,<br>
</div>
> Eugène NG<br>
<div>><br>
><br>
> 2014-07-18 13:42 GMT+02:00 Sten Carlsen <<a href="mailto:stenc@s-carlsen.dk" target="_blank">stenc@s-carlsen.dk</a>>:<br>
><br>
>><br>
>><br>
</div>
<div>
<div class="h5">>> On 18/07/14 13:25, Eugène Ngontang wrote:<br>
>> > Hi all,<br>
>> ><br>
>> > I know what you mean here. I know a dhcp server is not oblige to be in<br>
>> > the same subnet as clients, but in my case it should and is, because,<br>
>> > for our architecture.<br>
>> ><br>
>> > @Daniel, I know the dhclient FSA functionment, I also know how to<br>
>> check<br>
>> > log messagesw on linux, I just don't see missing offers, which is<br>
>> strange.<br>
>> The question I really saw was this:<br>
>> Do you see the DISCOVER that does not get an answer - in the logs?<br>
>><br>
>> The question is if it makes it's way into the server or is stopped<br>
>> before reaching the server?<br>
>><br>
>><br>
>> ><br>
>> > What I would like to mention is that things are not working as they<br>
>> > should, and I want to understand why.<br>
>> ><br>
>> > *Once again, it's not everytime that the server behaves like this, I<br>
>> > said sometimes it stops sending offers, and when I restart the service<br>
>> > it works fine, without any modification on the configuration. Dis read<br>
>> > well my first post?*<br>
>> > *<br>
>> > *<br>
>> > It's not simple network architure or configuration issue, I would have<br>
>> > detect. I want to debug dhcpd, can you help me please? Where can I<br>
>> look<br>
>> > again to locate the origin of the problem?<br>
>> > *<br>
>> > *<br>
>> > Thanks a lot.<br>
>> ><br>
>> > Regards,<br>
</div>
</div>
>> > Eugène NG<br>
<div>>> ><br>
>> ><br>
>> > 2014-07-18 13:16 GMT+02:00 Simon Hobson <<a href="mailto:dhcp1@thehobsons.co.uk" target="_blank">dhcp1@thehobsons.co.uk</a><br>
>> > <mailto:<a href="mailto:dhcp1@thehobsons.co.uk" target="_blank">dhcp1@thehobsons.co.uk</a>>>:<br>
>> ><br>
</div>
>> > Eugène Ngontang <<a href="mailto:sympavali@gmail.com" target="_blank">sympavali@gmail.com</a><br>
<div>
<div class="h5">>> <mailto:<a href="mailto:sympavali@gmail.com" target="_blank">sympavali@gmail.com</a>>><br>
>> > wrote:<br>
>> ><br>
>> > > If it was in the same subnet the clients could normaly nerver<br>
>> > communicate and get IP addresses from the server.<br>
>> ><br>
>> > I assume you meant to write "... was *not* in the same subnet ..."<br>
>> ?<br>
>> > If so, then that's not correct. You can have a server in a<br>
>> different<br>
>> > network to the clients - it just needs a relay agent in the<br>
>> network<br>
>> > local to the clients AND the ability to route unicast packets<br>
>> > between clients and server.<br>
>> ><br>
>> > _______________________________________________<br>
>> > dhcp-users mailing list<br>
>> > <a href="mailto:dhcp-users@lists.isc.org" target="_blank">dhcp-users@lists.isc.org</a> <mailto:<a href="mailto:dhcp-users@lists.isc.org" target="_blank">dhcp-users@lists.isc.org</a>><br>
>> > <a href="https://lists.isc.org/mailman/listinfo/dhcp-users" target="_blank">
https://lists.isc.org/mailman/listinfo/dhcp-users</a><br>
>> ><br>
>> ><br>
>> ><br>
>> ><br>
>> > --<br>
>> > <a href="mailto:ngonta_e@epitech.net" target="_blank">ngonta_e@epitech.net</a> <mailto:<a href="mailto:ngonta_e@epitech.net" target="_blank">ngonta_e@epitech.net</a>><br>
>> > <a href="mailto:sympavali@gmail.com" target="_blank">sympavali@gmail.com</a> <mailto:<a href="mailto:sympavali@gmail.com" target="_blank">sympavali@gmail.com</a>><br>
>> > ------------------------------------------------------------<br>
>> > /*Aux hommes il faut un chef, et au*//* chef il faut des hommes!<br>
>> > L'habit ne fait pas le moine, mais lorsqu'on te voit on te juge!<br>
>> > */<br>
>> ><br>
>> ><br>
>> > _______________________________________________<br>
>> > dhcp-users mailing list<br>
>> > <a href="mailto:dhcp-users@lists.isc.org" target="_blank">dhcp-users@lists.isc.org</a><br>
>> > <a href="https://lists.isc.org/mailman/listinfo/dhcp-users" target="_blank">
https://lists.isc.org/mailman/listinfo/dhcp-users</a><br>
>> ><br>
>><br>
>> --<br>
>> Best regards<br>
>><br>
>> Sten Carlsen<br>
>><br>
>> No improvements come from shouting:<br>
>><br>
>> "MALE BOVINE MANURE!!!"<br>
>> _______________________________________________<br>
>> dhcp-users mailing list<br>
>> <a href="mailto:dhcp-users@lists.isc.org" target="_blank">dhcp-users@lists.isc.org</a><br>
>> <a href="https://lists.isc.org/mailman/listinfo/dhcp-users" target="_blank">https://lists.isc.org/mailman/listinfo/dhcp-users</a><br>
>><br>
><br>
><br>
><br>
> --<br>
> <a href="mailto:ngonta_e@epitech.net" target="_blank">ngonta_e@epitech.net</a><br>
> <a href="mailto:sympavali@gmail.com" target="_blank">sympavali@gmail.com</a><br>
> ------------------------------------------------------------<br>
> *Aux hommes il faut un chef, et au*<br>
><br>
</div>
</div>
> * chef il faut des hommes!L'habit ne fait pas le moine, mais lorsqu'on te<br>
> voit on te juge!*<br>
<div class="HOEnZb">
<div class="h5">> _______________________________________________<br>
> dhcp-users mailing list<br>
> <a href="mailto:dhcp-users@lists.isc.org" target="_blank">dhcp-users@lists.isc.org</a><br>
> <a href="https://lists.isc.org/mailman/listinfo/dhcp-users" target="_blank">https://lists.isc.org/mailman/listinfo/dhcp-users</a><br>
<br>
<br>
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</blockquote>
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-- <br>
<font color="#3366ff"><a href="mailto:ngonta_e@epitech.net" target="_blank">ngonta_e@epitech.net</a></font>
<div><font color="#3366ff"><a href="mailto:sympavali@gmail.com" target="_blank">sympavali@gmail.com</a></font></div>
<div>------------------------------------------------------------</div>
<div><i><b>Aux hommes il faut un chef, et au</b></i><i><b> chef il faut des hommes!<br>
L'habit ne fait pas le moine, mais lorsqu'on te voit on te juge!<br>
</b></i></div>
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