6.5.1

Table Of Contents
Example of Booting Using HTTP 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;
if exists user-class and option user-class = "iPXE" {
# Instruct iPXE to load mboot.efi as secondary bootloader
option dhcp6.bootfile-url "tftp://[xxxx:xxxx:xxxx:xxxx::xxxx]/mboot.efi";
} else {
# Load the snponly.efi configuration of iPXE as initial bootloader
option dhcp6.bootfile-url "tftp://[xxxx:xxxx:xxxx:xxxx::xxxx]/snponly.efi";
}
When a machine attempts to PXE boot, the DHCP server provides an IP address and the location of the
snponly.efi (iPXE) binary file on the TFTP server. iPXE then asks the DHCP server for the next file to
load, and this time the server returns mboot.efi as the filename.
PXELINUX Configuration Files
You need a PXELINUX configuration file to boot the ESXi installer on a legacy BIOS system. The
configuration file defines the menu displayed to the target ESXi host as it boots up and contacts the TFTP
server for all SYSLINUX configurations, including PXELINUX and gPXELINUX.
This section gives general information about PXELINUX configuration files. For examples, see Sample
DHCP Configurations.
For syntax details, see the SYSLINUX web site at http://www.syslinux.org/.
Required Files
In the PXE configuration file, you must include paths to the following files:
n
mboot.c32 is the boot loader.
n
boot.cfg is the boot loader configuration file.
See About the boot.cfg File
File Name for the PXE Configuration File
For the file name of the PXE configuration file, select one of the following options:
n
01-mac_address_of_target_ESXi_host. For example, 01-23-45-67-89-0a-bc
n
The target ESXi host IP address in hexadecimal notation.
n
default
vSphere Installation and Setup
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