DHCP / Cisco IPhelper - Problem to get valid IP-Adresses

[Simon Hobson]

Christian Binder wrote:

>Problem Description:
>We had to move some PCs from one subnet to another because of reorganization.
>The hosts have the following entries in the /etc/dhcpd.conf:
>
>host client001 {
>                 hardware ethernet 00:0e:0c:c5:11:86;               
>                 # fixed-address 192.168.3.140; # adress of the old net
>                 fixed-address 192.168.4.198; # adress of the new one
>                 option host-name "client001";
>                 }
>
>
>We moved the host entries from the old subnet declariation to the 
>new and changed the IP -Entry (e.g. 192.168.3.140 to 192.168.4.198) .

Ahh, so you have host declarations INSIDE a subnet declaration ?

Do NOT do this as it tends to cause "unexpected results", put them in 
the global scope. The results are actually predictable, but are not 
what most people expect or require - it is related to the host 
inheriting options from the subnet where it is defined even when it 
is in a different subnet.

Also, check that you have moved the host declaration in BOTH server configs.