client refuses to accept offer

[anctop]

On 12/05/2010, Glenn Satchell <glenn.satchell at uniq.com.au> wrote:
> Have you tried uncommenting authoritative?

Yes, but no help.

> Be careful if all these dhcp servers operate on the same subnet. The
> client may be getting responses from more than just your dhcp server.

As far as I know, the other servers reject "unknown" hosts, and my
test client is "unknown" to them.

> The client may also be sending a dhcpdecline, which you're ignoring.

I've tried commenting out "deny declines;", but no help.

Regards,
anctop


> regards,
> -glenn
>
> On 05/12/10 13:13, anctop wrote:
>> I'm new to DHCP. My system is Linux 2.6.30.2, connected to a network
>> which already has some DHCP server(s) running.
>> I have a few static IP addresses in hand which I'm allowed to use, and
>> I want to create my own DHCP server.
>> I've built and installed dhcp-4.1.1 on my system. As a first step, I
>> tried to assign a fixed address for a particular computer. My
>> dhcpd.conf is :
>>
>>> option domain-name "yyy.zzz";
>>> option domain-name-servers 147.8.2.2;
>>>
>>> default-lease-time 3600;
>>> max-lease-time 14400;
>>>
>>> deny unknown-clients;
>>> deny bootp;
>>> deny declines;
>>> deny client-updates;
>>> deny leasequery;
>>>
>>> # authoritative;
>>>
>>> boot-unknown-clients false;
>>>
>>> log-facility local1;
>>>
>>> subnet 147.8.108.0 netmask 255.255.255.0 {
>>> }
>>>
>>> host x099 {
>>>    hardware ethernet 00:0C:F1:D1:16:78;
>>>    fixed-address 147.8.108.99;
>>>    option host-name "x099";
>>>    option routers 147.8.96.1;
>>>    option subnet-mask 255.255.255.0;
>>> }
>>
>> I start the server on the foreground (dhcpd -4 -d), then connect the
>> client (running WinXP SP3) to the network. There're many console
>> messages, here are the relevant ones :
>>
>>> May 12 10:16:27 xxx dhcpd: Internet Systems Consortium DHCP Server 4.1.1
>>> May 12 10:16:27 xxx dhcpd: Copyright 2004-2010 Internet Systems
>>> Consortium.
>>> May 12 10:16:27 xxx dhcpd: All rights reserved.
>>> May 12 10:16:27 xxx dhcpd: For info, please visit
>>> https://www.isc.org/software/dhcp/
>>> May 12 10:16:27 xxx dhcpd: Wrote 0 deleted host decls to leases file.
>>> May 12 10:16:27 xxx dhcpd: Wrote 0 new dynamic host decls to leases file.
>>> May 12 10:16:27 xxx dhcpd: Wrote 0 leases to leases file.
>>> May 12 10:16:27 xxx dhcpd: Listening on
>>> LPF/eth0/00:11:2f:53:aa:49/147.8.108.0/24
>>> May 12 10:16:27 xxx dhcpd: Sending on
>>> LPF/eth0/00:11:2f:53:aa:49/147.8.108.0/24
>>> May 12 10:16:27 xxx dhcpd: Sending on   Socket/fallback/fallback-net
>>> May 12 10:16:32 xxx dhcpd: DHCPDISCOVER from 00:0c:f1:d1:16:78 via eth0
>>> May 12 10:16:32 xxx dhcpd: DHCPOFFER on 147.8.108.99 to 00:0c:f1:d1:16:78
>>> via eth0
>>> May 12 10:16:35 xxx dhcpd: DHCPDISCOVER from 00:0c:f1:d1:16:78 via eth0
>>> May 12 10:16:35 xxx dhcpd: DHCPOFFER on 147.8.108.99 to 00:0c:f1:d1:16:78
>>> via eth0
>>> May 12 10:16:44 xxx dhcpd: DHCPDISCOVER from 00:0c:f1:d1:16:78 via eth0
>>> May 12 10:16:44 xxx dhcpd: DHCPOFFER on 147.8.108.99 to 00:0c:f1:d1:16:78
>>> via eth0
>>
>> It appears that the client does not accept the DHCPOFFER and asks for
>> one repeatedly until it gives up. The same problem for other "host"
>> declarations.
>>
>> How can this be fixed ?
>>
>> Regards,
>> anctop
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