User`s guide

Table Of Contents
Configure DHCP
When you configure a private, isolated network that is used specifically for provisioning, the OS
Provisioning Server uses the DHCP server it installed to provide addresses and network boot information
to nodes connected to the network.
Prerequisites
Determine whether you are using a private network (recommended) or shared network (supported, but
not recommended). If you are provisioning systems on a shared network, you probably have a DHCP
server on the network. Disable the OS Provisioning Server's DHCP server and configure your regular
DHCP server to provide network boot information for machines to be provisioned. See "Configure a
DHCP Server Other Than the OS Provisioning Server" on page 25 .
Procedure
1. Open /opt/FastScale/etc/dhcpd.conf.
2. Configure the settings for your environment.
Option Description
subnet
The IP address subnet of the private network interface.
Default value is 10.11.12.0.
netmask
The netmask of the subnet.
Default value is 255.255.255.0.
range
The range of allocated IP addresses for the provisioned nodes.
Default value is 10.11.12.100–10.11.12.200.
broadcast-address
The broadcast address on the subnet.
Default value is 10.11.12.255.
next-server
The IP address of the private network interface.
Default value is 10.11.12.1.
What to do next
Configure the TFTP server to work with the provisioning environment. See "Configure TFTP " on page 26.
Configure a DHCP Server Other Than the OS Provisioning Server
To configure your system to work with a DHCP server other than the one on the OS Provisioning Server,
you turn off the OS Provisioning Server DHCP server and configure your corporate DHCP server to
connect to the OS Provisioning Server after nodes connect and NetBoot (PXE) starts. The nodes download
the boot kernel from the OS Provisioning Server through TFTP.
Procedure
1. On the OS Provisioning Server, log in as root.
2. Open /etc/sysconfig/FSdhcpd.
3. Change DHCPD_CONF=/opt/FastScale/etc/dhcpd.conf to DHCPD_
CONF=/opt/FastScale/etc/dhcpd.conf.none
This change prevents the DHCP from resetting after a reboot.
Installing, Configuring, and Upgrading the OS Provisioning Server and Components
VMware, Inc. 25