PXE:DHCPd [FreeBSD WIKI]

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====== Setting up DHCPd to work with PXE ======

The dhcpd.conf should look something like this:

<code>
option routers 192.168.0.1;
server-identifier 192.168.0.1;
next-server 192.168.0.1;

default-lease-time 600;
max-lease-time 7200;

subnet 192.168.0.0 netmask 255.255.255.0 {
       range 192.168.0.10 192.168.0.254;
       option root-path "/usr/local/export/pxe";
       filename "pxeboot";
}
</code>

This is using the 192.168.0.0/24 subnet but only leaseing 192.168.0.10-254. There are 3 thing that are important here. The //next-server// line tells the PXE boot loader the IP of the NFS mount. The //option root-path// statement is the NFS mount path. And last but not least the //filename// statment tells the PXE loader the name of the boot loader to use.

This is designed to be on a dedicated network interface that only connects to the network that will be used for the PXE loading of servers or a network that doesn't already have a DHCP server.

This assumes that you aren't alreadying using 192.168.0.0/24 for something and that the PXE Boot server will also be the optional gateway to the internet.