After you modify the dhcpd.conf file based on your environment, you need to start or restart your DHCPD service. For more information, see http://ipxe.org/howto/dhcpd

Sample DHCP Configuration

#dhcpd.conf

#Sample configuration file for ISC dhcpd

#option definitions common to all supported networks...

#option domain-name "example.org";

#option domain-name-servers 192.168.203.46;

#filename "pxelinux.0";

next-server 192.168.123.21;# IP address of ASM Server

default-lease-time 6000; max-lease-time 7200;

#Use this to enble / disable dynamic dns updates globally. #ddns-update-style none;

#If this DHCP server is the official DHCP server for the local

#network, the authoritative directive should be uncommented. authoritative;

#Use this to send dhcp log messages to a different log file (you also have to hack syslog.conf to complete the redirection.

log-facility local7;

#No service will be given on this subnet, but declaring it helps the

#DHCP server to understand the network topology.

#subnet 192.168.123.0 netmask 255.255.255.0 { #}

# This is a very basic subnet declaration.

subnet 192.168.123.0 netmask 255.255.255.0 { range 192.168.123.24 192.168.123.29; option subnet-mask 255.255.255.0;

option routers 192.168.123.1;

if exists user-class and option user-class = "iPXE" { filename "bootstrap.ipxe";

}else {

filename "undionly.kpxe";

}

}

#This declaration allows BOOTP clients to get dynamic addresses,

#which we don't really recommend.

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Dell 8 manual Sample Dhcp Configuration