Symantec ALTIRIS DEPLOYMENT SOLUTION 6.9 SP4 - V1.0 Manual page 312

PXE Configuration Utility
The PXE Manager multicast properties section lets you set a Beginning Multicast
Address, the Number of Multicast Addresses Available, and the Maximum
Addresses Available to Single PXE Server.
A multicast address is automatically assigned to the files a PXE Server uses to download
the boot menu options to client computers. A PXE boot menu option consists of two files.
The MenuOption<number>.0 file is the boot menu, and the MenuOption<number>.1 file
is the additional file needed to execute the menu item you select.
Example: The PXE.ini file consists of information gathered by PXE Manager and includes
a section called MTFTP\Files. This section lists the MenuOption files and their assigned
multicast addresses.
]
[MTFTPD\FILES
BStrap\x86pc\BStrap.0="224.1.1.0"
MenuOption128\x86pc\MenuOption128.0="224.1.1.1"
MenuOption128\x86pc\MenuOption128.0.cr-1005309736="224.1.1.2"
MenuOption128\x86pc\MenuOption128.1="224.1.1.3"
MenuOption129\x86pc\MenuOption129.0="224.1.1.4"
MenuOption129\x86pc\MenuOption129.0.cr-1005309736="224.1.1.5"
MenuOption129\x86pc\MenuOption129.1="224.1.1.6"
Notice that the multicast address increments by 1 for each file that is created when a
new PXE configuration is added and the boot image is created. These are the files that a
PXE Server downloads when you select a boot menu option from the menu list on a
client computer.
PXE Manager
PXE Manager creates a PXE Manager.ini file, which gathers data from all the PXE Servers
on the network. The PXE Manager.ini file creates and sends a PXE.ini file that is specific
to each PXE Server. Both PXE Manager.ini and PXE.ini files are used by the PXE Manager
service to synchronize the boot images across all PXE Servers and Deployment Servers
on the network.
Important
Do not edit the PXE Manager.ini or PXE.ini files. Once these files are edited, you can no
longer access the boot images stored on all PXE Servers, and the PXE Manager service
does not function properly. See PXE Manager in the Automation & Imaging section of
the Deployment Solution Product Guide.
TFTP/MTFTP properties
Use Shared properties: Select this option when you want to set the properties for a
Shared Configuration. Once you set the properties, you cannot change this selection on
the other pages.
Customize PXE Server: Shared Configuration: This option is available when you
select a specific server from the File menu. You can also customize the properties for
the PXE Server you selected.
Enable MTFTP: Clear this option if you do not want to use MTFTP to download the boot
menu from the PXE Server to client computers. If a PXE Server is going to service client
Deployment Solution 312