need dhcpd configuration

[Randall C Grimshaw]

Hi:
  I think the access control is being ignored because it is misspelled.
  try allow-known-clients

Randall Grimshaw rgrimsha at syr.edu
________________________________________
From: dhcp-users-bounces+rgrimsha=syr.edu at lists.isc.org [dhcp-users-bounces+rgrimsha=syr.edu at lists.isc.org] On Behalf Of Julie Xu [xll40 at hotmail.com]
Sent: Monday, August 02, 2010 11:16 PM
To: dhcp list
Subject: need dhcpd configuration

hi

I am testing the configuration allow-knowns-clients, and configured as:

subnet 10.1.1.0 netmask 255.255.255.0 {
    options .....
    pool {
       range 10.1.1.20 10.1.1.254;
       allow-knowns-clients;
    }
}

I expected my laptop, which not in host list of my dhcpd.conf, will NOT get an ip address. But, my laptop still get ip address.

So, I think I may need add something. I added deny-unknown-clients, but, it same problem.

Could I get some tip what problem will be?

my purpose is stop the machine which is not on host list will not get an ip address.

Any comments will be appreciated

Thanks in advance

julie