Michele Mazzucco
2009-Oct-19 13:59 UTC
[Xen-users] Help needed for configuring DHCP3 server on XEN
Hello everybody,
I have just installed the XEN kernel on a Linux box (Ubuntu 9.04, 32
bit). I want to setup a DHCP server in order to run some tests with
Rubis VA http://forge.ow2.org/forum/forum.php?forum_id=1453. I have
followed the step-by-step instructions reported on the Rubis VA
installation how-to, but I had no luck in setting up the DHCP server.
The host machine uses a static IP address, so I have created a virtual
interface (eth0:1) in order not to interfere with the network
interface and cause any problems in the cluster (the server is hosted
on a server farm).
Please find below the dhcpd.conf, dhcp3-server as well as the syslog.
#
# DHCP Server Configuration file.
# see /usr/share/doc/dhcp*/dhcpd.conf.sample
#
# Required for dhcp 3.0+ / Red Hat 8.0+
ddns-update-style interim;
ignore client-updates;
default-lease-time 259200;
max-lease-time 518400;
subnet 192.168.1.0 netmask 255.255.255.0 {
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.1.255;
option routers 192.168.1.1;
option domain-name "rubisva.cy";
range 192.168.1.50 192.168.1.100;
option domain-name-servers 194.42.16.11;
#option domain-name-servers 192.168.1.1;
}
----------------------------------------------------------
#
# DHCP Server Configuration file.
# see /usr/share/doc/dhcp*/dhcpd.conf.sample
#
# Required for dhcp 3.0+ / Red Hat 8.0+
ddns-update-style interim;
ignore client-updates;
default-lease-time 259200;
max-lease-time 518400;
subnet 192.168.1.0 netmask 255.255.255.0 {
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.1.255;
option routers 192.168.1.1;
option domain-name "rubisva.cy";
range 192.168.1.50 192.168.1.100;
option domain-name-servers 194.42.16.11;
#option domain-name-servers 192.168.1.1;
}
----------------------------------------------------------
syslog:
Oct 16 16:50:56 vm101 dhcpd: No subnet declaration for eth0:1 (0.0.0.0).
Oct 16 16:50:56 vm101 dhcpd: ** Ignoring requests on eth0:1. If this
is not what
Oct 16 16:50:56 vm101 dhcpd: you want, please write a subnet declaration
Oct 16 16:50:56 vm101 dhcpd: in your dhcpd.conf file for the network segment
Oct 16 16:50:56 vm101 dhcpd: to which interface eth0:1 is attached. **
Any idea about what is wrong?
Thanks,
Michele
p.s. I have posted the same question on the Ubuntu forum
(http://ubuntuforums.org/showthread.php?p=8127606&posted=1#post8127606),
but nobody has been able to answer so far.
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Fajar A. Nugraha
2009-Oct-20 02:41 UTC
Re: [Xen-users] Help needed for configuring DHCP3 server on XEN
On Mon, Oct 19, 2009 at 8:59 PM, Michele Mazzucco <michelemazzucco@gmail.com> wrote:> The host machine uses a static IP address, so I have created a virtual > interface (eth0:1) in order not to interfere with the network > interface and cause any problems in the cluster (the server is hosted > on a server farm).Short answer : you need to ask your network guys. Seriously! Good thing you forgot to assign IP address to eth0:1. Otherwise you''d be giving out non-working DHCP leases to your server farm.> range 192.168.1.50 192.168.1.100;> Oct 16 16:50:56 vm101 dhcpd: No subnet declaration for eth0:1 (0.0.0.0). > Oct 16 16:50:56 vm101 dhcpd: ** Ignoring requests on eth0:1. If thisStart with those. the interface needs to have an IP address within that range. If you only want a private IP address on that network only, you can simply use libvirt (bundled by default on RHEL/Centos). -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users