ISC dhcp assigns ip addresses outside dynamic range

[Glenn Satchell]

On Wed, July 4, 2018 11:45 pm, Christian Kratzer wrote:
> Hi,
>
> On Wed, 4 Jul 2018, Frank Ulherr wrote:
>> our dhcpd.conf contains the following section:
>>
>> subnet 10.91.120.0 netmask 255.255.255.0 {
>>  option routers 10.91.120.254;
>>  option domain-name-servers 8.8.8.8;
>>  pool {
>>  failover peer "dhcp-failover";
>>  deny dynamic bootp clients;
>>  range 10.91.120.94 10.91.120.94;
>>  range 10.91.120.106 10.91.120.106;
>>  range 10.91.120.108 10.91.120.108;
>>  range 10.91.120.111 10.91.120.111;
>>  range 10.91.120.113 10.91.120.114;
>> ...
>>
>> Unfortunately the ip address 10.91.120.7 is assigned to a client.
>
> most propably you have a host reservation for 10.91.120.7 either in your
> configuration file or in the lease file.
>
> Greetings
> Christian
>

What is in the dhcp log files for this request? Does the client already
have the address and ask for an extension, or does it go through the
DHCPDISCOVER and get assigned the address?

regards,
-glenn