You need to add entries for your VMs to your dhcpd.conf file so that they will correctly be assigned their private addresses at boot.
Click Manage Computers
Select the All VM Computers group in the list at the top
Select the Computer Utilities radio button
Click Submit
Click the Check All link at the bottom of the table
Next to “For selected computers, generate computer data for”, select “dhcpd”
Click Generate Data
Enter the private IP address for your management node
Click Generate Data
Copy/Paste the data for dhcpd.conf to the dhcpd.conf file on your management node (ignore the part for dhcpd.leases)
Restart dhcpd:
service dhcpd restart
Scroll to the bottom and click Close
You need to add entries for your VM hosts and VMs to /etc/hosts