DHCP Server not sending offers!

[Eugène Ngontang]

@sundararaman, there is no iptables rules no where, we don't need it and it
doesn't run.


Regards,
Eugène NG


2014-07-18 14:19 GMT+02:00 <sundararaman.dheivanayagam at wipro.com>:

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

* chef il faut des hommes!L'habit ne fait pas le moine, mais lorsqu'on te
voit on te juge!*
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