gutsy and regular PCs on edubuntu lan

[Denis Melnikov]

> Ok, perhaps this is more of a ISC DHCP question, but I now have two
> NICs in the LTSP server and it's running DHCPD.  There's another DHCPD
> server on the same LAN and it seems to not be a problem.

Hi,
as I understand your LTSP's dhcpd is listening to 192.168.0.0/24
subnet, while another DHCPD to 192.168.1.0/24 one. If so you don't
need to define the 2nd subnet at your 1st dhcpd and vice versa.
This will work provided the servers placed in corresponding
subnets. Else you will need dhcp-relay at your router.

Denis


> I read the ISC DHCPD docs again today and I'm not clear about
> something:  The LTSP dhcpd.conf only has a listing for the subnet for
> the thin clients.  It also is "authoritive".
> 
> /etc/ltsp/dhcpd.conf
> 
>     authoritative;
> 
>     subnet 192.168.0.0 netmask 255.255.255.0 {
>         range 192.168.0.20 192.168.0.250;
>         ...
>     }
> 
> Maybe I need to take a peek with wireshark, but do I need an empty
> subnet section for the subnet that has the other DHCPD server?
> 
> What I'm not clear on is if the LTSP DHCPD will answer requests from
> clients on the other subnet (192.168.1.x).  Seems like the docs say
> that dhcpd will send out DHCPNAK since the entire config is
> authoritative and 192.168.1.x is not a defined subnet.  That would
> conflict with the other dhcpd server.
> 
> -- 
> Bill Moseley
> moseley at hank.org