Xen users - May 2008 - Problem in DHCP Server with XEN no free leases Error

Hi I have installed Xen 3.0.4 in Scientific linux Os.. Now I want to
configure dhcp server.
I have configured my dhcp server in my host (g40.grid ) . Here''s my
dhcpd.conf file


[root@g40 ~]# cat /etc/dhcpd.conf
ddns-update-style ad-hoc;
default-lease-time 600;
max-lease-time 7200;
lease-file-name "/var/lib/dhcp/dhcpd.leases";
authoritative;
log-facility local7;
# Configuration for an internal subnet.
subnet 10.2.0.0 netmask 255.255.255.0 {

        pool {
                  range 10.2.0.120 10.2.0.150;
 }

  option routers 10.2.0.40;
  option broadcast-address 10.2.0.255;
  default-lease-time 600;
  max-lease-time 7200;
}
}

With this i ve started my dhcp server successfully .. Also my IP
Address of dom0 is 10.2.0.40

Now I ve created on vm with FC4 image and with the following config file

[root@g40 ~]# cat /opt/VIRTUALCLUSTER/WORKING.CLUSTERSCRIPTS/g152node
kernel = "/boot/vmlinuz-2.6-xen"
memory = 256
extra = "fastboot"
ramdisk = "/boot/initrd-2.6.16.33-xen.img"
disk =
[''phy:vg/g152node,sda6,w'',''phy:vg/g152swap,sda7,w'',
''phy:vg/modules,sda5,r'']
name = "g152.grid"
root = "/dev/sda6 ro"
vif=[''bridge=xenbr0'']
dhcp="dhcp"
eth0="on"

While starting my guest domain Im getting the following error message
in /var/log/messages of Dom0

May 19 19:50:22 g40 dhcpd: DHCPDISCOVER from 00:16:3e:53:a3:a1 via
eth0: network 10.2.0.0/24: no free leases
May 19 19:51:02 g40 last message repeated 4 times


Here''s my guest domains network config file contents

[root@g152 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
ONBOOT=yes
TYPE=Ethernet
DEVICE=eth0
BOOTPROTO=dhcp




Is there any thing wrong with my configuration . Or anything else I ve
to configure more..
Please help me to configure this ..


Thanks /Regards
Rajiv
Project Associate ,
CARE, MIT,
Anna university

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