The following are the requirements
IBM PC-compatible computer with an Intel Pentium III or higher processor.
Support for PXE 2.1 or later.
A network interface supported by PXE.
A directly attached disk drive in the master boot host.
Microsoft Windows 2000 Server or Advanced Server with Service Pack 3.
Cisco iSCSI Driver Version 2.2.1 (or later) for Microsoft Windows 2000
Note Only the Cisco iSCSI Driver Version 2.2.1 (or later) for Microsoft Windows 2000 is supported with this version of Cisco Network Boot.