6.5.1

Many DHCP servers can PXE boot hosts. If you are using a version of DHCP for Microsoft Windows, see
the DHCP server documentation to determine how to pass the next-server and filename arguments to
the target machine.
Example of Booting Using TFTP with IPv4
This example shows how to configure an ISC DHCP server to boot ESXi using a TFTP server at IPv4
address xxx.xxx.xxx.xxx.
#
# ISC DHCP server configuration file snippet. This is not a complete
# configuration file; see the ISC server documentation for details on
# how to configure the DHCP server.
#
allow booting;
allow bootp;
option client-system-arch code 93 = unsigned integer 16;
class "pxeclients" {
match if substring(option vendor-class-identifier, 0, 9) = "PXEClient";
next-server xxx.xxx.xxx.xxx;
if option client-system-arch = 00:07 or option client-system-arch = 00:09 {
filename = "mboot.efi";
} else {
filename = "pxelinux.0";
}
}
When a machine attempts to PXE boot, the DHCP server provides an IP address and the location of the
pxelinux.0 or mboot.efi binary file on the TFTP server.
Example of Booting Using TFTP with IPv6
This example shows how to configure an ISC DHCPv6 server to boot ESXi using a TFTP server at IPv6
address xxxx:xxxx:xxxx:xxxx::xxxx.
#
# ISC DHCPv6 server configuration file snippet. This is not a complete
# configuration file; see the ISC server documentation for details on
# how to configure the DHCP server.
#
allow booting;
allow bootp;
option dhcp6.bootfile-url code 59 = string;
option dhcp6.bootfile-url "tftp://[xxxx:xxxx:xxxx:xxxx::xxxx]/mboot.efi";
When a machine attempts to PXE boot, the DHCP server provides an IP address and the location of the
mboot.efi binary file on the TFTP server.
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