cannot change ip address in pool (fixed question)

[Jan nowak]

Hello,
I've got weird problem with isc-dhcp-server (4.1.1-P1-15+squeeze6).
I work in Cable TV and i am responsible of maintaining docsis layer.

##############################
############################################################
host m69 { hardware ethernet 00:0a:73:f9:e6:3a; fixed-address 172.16.10.69;
filename "file.cm <http://plik.cm>";}
class "M069" { match if binary-to-ascii(16, 8, ":", option agent.remote-id)
= "0:a:73:f9:e6:3a"; spawn with option agent.remote-id; lease limit 1;}
pool { allow members of "M069"; range 172.16.20.69; }
############################################################################################

In this code i defined IP addresses of modem and CPE. First line
corresponds to modem access layer ( MAC + IP) and second and third lines of
code corresponds to CPE access layer. Problem occurs when i need to change
CPE device (from router to PC).
When I changed CPE device and restarted both: isc dhcp server and CPE, then
CPE doesn't get ip address. It's like isc dhcp server remembers last CPE
device and doesn't allow to assing ip address to another device. Few months
ago i used debian lenny and then everthing was good. Now i moved to Debian
squeeze and something goes wrong.

Please help.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20120912/adc3d6c7/attachment.html>