DHCP Server not sending offers!
Sten Carlsen
stenc at s-carlsen.dk
Fri Jul 18 11:54:11 UTC 2014
On 18/07/14 13:48, Eugène Ngontang wrote:
> @Sten, I saw discover whiwh do not receive offers on client and server side.
The point here is that a lot of network issues are ruled out when the
unanswered DISCOVER is in the logs.
I am not sure where to go from here, others will know.
>
> 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
> <mailto: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>
> > <mailto:dhcp1 at thehobsons.co.uk <mailto:dhcp1 at thehobsons.co.uk>>>:
> >
> > Eugène Ngontang <sympavali at gmail.com
> <mailto:sympavali at gmail.com> <mailto: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.
> >
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> <mailto:dhcp-users at lists.isc.org <mailto:dhcp-users at lists.isc.org>>
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> >
> >
> >
> >
> > --
> > ngonta_e at epitech.net <mailto:ngonta_e at epitech.net>
> <mailto:ngonta_e at epitech.net <mailto:ngonta_e at epitech.net>>
> > sympavali at gmail.com <mailto:sympavali at gmail.com>
> <mailto: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!
> > */
> >
> >
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>
> --
> Best regards
>
> Sten Carlsen
>
> No improvements come from shouting:
>
> "MALE BOVINE MANURE!!!"
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> --
> 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!
> */
>
>
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--
Best regards
Sten Carlsen
No improvements come from shouting:
"MALE BOVINE MANURE!!!"
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