Simulating PXE booting for virtualized machines

Details Simulating PXE booting for virtualized machines Simulating PXE booting for virtualized machines

2011-07-12

2011-07-12

Thangavelu, Kandasamy (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Simulating electronic device or electrical system

C718S001000, C713S002000

Reexamination Certificate

active

07979260

ABSTRACT:
The operating system agnostic PXE network booting environment is simulated, such that the VMs boot “virtually” from a network boot image, which is actually provided by the hypervisor. More specifically, the network traffic of VMs is filtered, and PXE requests are detected. Responsive to a detected PXE request, the hypervisor simulates the PXE server, and returns an invalid IP address to the VM for PXE communication. This invalid IP address is configured for only internal communication on a virtual network. The hypervisor intercepts PXE related communication sent by the VM to the invalid address, and returns expected PXE responses to the VM, including a boot image. This allows the hypervisor to provide, inspect and/or modify the boot time environment of VMs.

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