Ive read alot on setting up a dhcp server but I just cant seem to get it working.

The ip of the dhcp server is 128.xxx.xxx.39. The subnet mask for this computer is 255.255.255.128. The default gateway is 128.xxx.xxx.1. I want to have another computer get an ip address from this computer using dhcp. The ip address I want to give out is 10.xxx.xxx.42. Below is what i have so far for my dhcpd.conf file. What should I put for option routers and everything else. Im just really confused.

subnet 10.227.237.0 netmask 255.255.255.128 {

# --- default gateway
range 10.xxx.xxx.42 10.xxx.xxx.42;
option routers ???.???.???.???;
option subnet-mask 255.255.255.128;

option domain-name "xxx.xxx.edu";
option domain-name-servers xxx.xxx.xxx.24,xxx.xxx.xxx.1,xxx.xxx.xxx.51;

default-lease-time 86400; #one day
max-lease-time 604800; #one week

host euclid {
hardware ethernet xxxxxxxxxxxx;
fixed-address 10.xxx.xxx.42;
}
}

When i start dhcpd it says:

Wrote 0 deleted host decls to leases file.
Wrote 0 new dynamic host decls to leases file.
Wrote 0 leases to leases file.

No subnet declaration for eth0 (128.xxx.xxx.39).
** Ignoring requests on eth0. If this is not what
you want, please write a subnet declaration
in your dhcpd.conf file for the network segment
to which interface eth0 is attached. **

Any help would be greatly apprecated!!!
Paul

It looks to me like in your haste you forgot to create a dhcpd.leases file. DHCP needs this file to start up.

That should fix your problem. You may still get the error about ignoring the requests on eth0, but your clients should now be able to pick up dhcp addresses.

Cheers

Tap

Here you should put your default gateway IP address.

option routers ???.???.???.???;

/nordickiwi

ok the dhcpd.leases file was there and now i have correctly added by gateway ip address. When i try and start the server it says:

[root@apollo dhcp]# /etc/init.d/dhcpd restart
Shutting down dhcpd: [FAILED]
Starting dhcpd: Internet Software Consortium DHCP Server V3.0pl2
Copyright 1995-2003 Internet Software Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP
Wrote 0 deleted host decls to leases file.
Wrote 0 new dynamic host decls to leases file.
Wrote 0 leases to leases file.

No subnet declaration for eth0 (xxx.xxx.xxx.39).
** Ignoring requests on eth0. If this is not what
you want, please write a subnet declaration
in your dhcpd.conf file for the network segment
to which interface eth0 is attached. **

Any other suggestions?
Thanks,
Paul J

Is it Debian ? If so, have you checked /etc/default/dhcp out ? Make sure you're using the correct Ethernet adapter.

INTERFACES="eth0"

You may also wanna play with /etc/init.d/dhcp

Also try:

/usr/sbin/dhcpd eth0


Rodrigo Otavio Paes de Barros Otaviano

sorry, I am using fedora core 1.

Oh and the error message also says at the end(i cut it out before):

Not configured to listen on any interfaces!

Thanks,
paul J

What does ifconfig look like? I was having the same problem till I actually set up eth0.

Hum, so try this:

/usr/sbin/dhcpd eth0

Rodrigo Otavio Paes de Barros Otaviano