Configuring DHCP.

[Daniel Carrera]

Hello,

I seem to have made progress. I edited /etc/network/interfaces:

- auto lo
+ auto lo eth0 eth1


I don't really know what that's supposed to do, but now the DHCP server 
starts. Indeed, when I boot the thin client, it successfully receives an 
address from the DHCP server.

The client still doesn't boot up. The last message I see is:


Searching for server (DHCP)......
Me: 192.168.0.250, DHCP: 192.168.0.1, TFTP: 192.168.0.1, Gateway 192.168.0.1
Loading 192.168.0.1:/ltsp/pxelinux.0


And then it just hangs there.

I checked, and the server does /not/ have a file with the path 
/ltsp/pxelinux.0 and indeed, 'locate pxelinux' does not return anything.

I have followed the instructions in:

http://www.edubuntu.org/EdubuntuTesting

And I've rebooted the computer since.

So I suspect that the thin client is not receiving a kernel from the 
server. But it's hard to imagine that a kernel just isn't available.

Incidentally, I did restart portmap and nfs-kernel-server like the 
instructions say, without error.

Again, any help would be much appreciated.

Cheers,
Daniel.


Daniel Carrera wrote:
> Hello,
> 
> I'm having problems configuring the DHCP server (it won't start - need 
> help with dhcpd.conf).
> 
> 1) This is my current setup:
> 
>  * eth0 points to the internet.
>  * eth1 points to the thin clients.
>  * I did 'sudo dpkg-reconfigure dhcp3-server' and told it to serve DHCP
>    requests on eth1.
>  * I did copy /etc/ltsp/dhcpd.conf to /etc/dhcp3
>  * I edited /etc/network/interfaces to contain:
> 
>     iface eth0 inet dhcp
>     iface eth1 inet static
>           address 192.168.0.1
>           netmask 255.255.255.0
>           up flush-mail
> 
> 2) This is the error:
> 
> When I type 'sudo /etc/init.d/dhcp3-server start' I get the message 
> "dhcpd3 failed to start" and the following error in syslog:
> 
> <quote>
>  No subnet declaration for eth1 (0.0.0.0).
>  ** Ignoring requests on eth1.  If this is not what
>     you want, please write a subnet declaration
>     in your dhcpd.conf file for the network segment
>     to which interface eth1 is attached. **
> 
>  Not configured to listen on any interfaces!
> </quote>
> 
> The contents of dhcpd.conf are unmodified from the default 
> /etc/ltsp/dhcpd.conf. That is:
> 
> <full-contents>
> authoritative;
> 
> subnet 192.168.0.0 netmask 255.255.255.0 {
>   range 192.168.0.20 192.168.0.250;
>   option domain-name "example.com";
>   option domain-name-servers 192.168.0.1;
>   option broadcast-address 192.168.0.255;
>   option routers 192.168.0.1;
>   option subnet-mask 255.255.255.0;
> 
>   filename "/ltsp/pxelinux.0";
>   option root-path "/opt/ltsp/i386";
> }
> </full-contents>
> 
> 
> I am now at a loss. I don't know what to do here. I was hoping that 
> someone here could guide me a little. Any help would be very much 
> appreciated.
> 
> Cheers,
> Daniel.


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