[K12OSN] DHCP Conflicts

[k12ltsp]

Hi everyone!

We have setup autologins using the KDM at the elementary school, and I've
just discovered that the DHCP server is providing multiple IP's to
different boxes!

Here's what we did:

In the K-3 classrooms, since students don't have their own accounts yet,
we created accounts specific for each terminal. Then, we setup autologin
for the terminals in the KDMRC file as such:

[X-ws104.ltsp:0-Core]
AutoLoginEnable=true
AutoLoginUser=room6b
NoPassEnable=true
NoPassUsers=room6b

Next, we made a special entry for the Mac address of the terminal into the
dhcpd file as such:

    host ws104 {
        hardware ethernet     00:50:8B:4E:72:1F;
        fixed-address         192.168.0.104;
    }

Then, we restarted dhcpd and at least for a few weeks, we didn't notice
any problems until a few days ago. Now, terminals are freezing up in
random locations. It appears that the DHCP server provided a reserved IP
address to one of the terminals. Here is the result:

(From IFCONFIG):
HWaddr: 00:06:25:05:A4:D9
inet addr: 192.168.0.104

Does anyone know what we are doing wrong and how we can fix this?

Thanks!
Alan
Hermon School Department