DHCP don't acknowledges more than 80 users??

[Austin Gabel]

failover peer "dhcp-failover" state {
  my state communications-interrupted at 2 2008/12/02 20:50:34;
  partner state normal at 1 2008/11/24 07:17:33;
}

There is a hint right there.  Unless you just restarted your dhcp server,
your failover peers are not communicating correctly.



On Thu, Dec 4, 2008 at 12:53 PM, Simon Hobson <dhcp1 at thehobsons.co.uk>wrote:

> Hochreiter wrote:
>
>  Well, let's see...
>>>
>>>
>>> - no logs
>>> - no configuration
>>> - no lease database
>>> ...
>>>
>>>
>  Sorry - I didn't include more information, because the same configuration
>> was working before
>> switching to Cent OS 5.2 so I do not expect that it is wrong - I thought
>> somebody can give me
>> a hint like "check the ulimits for this or for that ..." - Sorry my fault
>> here are the informations:
>>
>> System:
>> Cent OS 5.2, ISC Dhcpd 3.0.5 with paranoia and ldap patch. Started with:
>>  /usr/sbin/dhcpd -f /etc/dhcpd.conf -chroot /var/lib/dhcp/ -lf
>> /db/dhcpd.leases -user dhcpd -group nobody bond0
>>
>> Configuration:
>> [root at xdaten ~]# cat /etc/dhcpd.conf
>> ddns-update-style none;
>> authoritative;
>> ignore declines;
>> ldap-server "xdaten";
>> ldap-dhcp-server-cn "xdaten";
>> ldap-port 389;
>> ldap-username "uid=Admin,ou=Users,dc=base,dc=at";
>> ldap-password "XXXXXXX";
>> ldap-base-dn "ou=DHCP,dc=base,dc=at";
>> ldap-method dynamic;
>> ldap-debug-file "/var/log/dhcp-ldap.log";
>> failover peer "dhcp-failover" {
>>  # secondary;
>>  primary;
>>  address 10.0.0.2;
>>  port 648;
>>  peer address 10.0.0.1;
>>  peer port 647;
>>  max-response-delay 30;
>>  max-unacked-updates 10;
>>  load balance max seconds 3;
>>  mclt 1800;
>>  split 128;
>> }
>>
>>
> And the rest of it ? There's no subnet declaration there !
>
>  Dec  3 08:05:11 xdaten dhcpd: DHCPDISCOVER from 08:bb:cc:04:a3:9d
>> (XT-MICRO-04A39D) via 10.1.0.253: peer holds all free leases
>> Dec  3 08:05:12 xdaten dhcpd: DHCPDISCOVER from 08:bb:cc:04:a3:9d
>> (XT-MICRO-04A39D) via 10.1.0.254: peer holds all free leases
>>
>
> Well "peer holds all free leases" is a big hint.
>
> What's the other server logging ? Are the two servers communicating
> properly ? Is the other server handing out leases ?
>
> --
> Simon Hobson
>
> Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
> author Gladys Hobson. Novels - poetry - short stories - ideal as
> Christmas stocking fillers. Some available as e-books.
>
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