Patent ID: 9191460
Filing Date: 2015-11-17
Classification: G06F,H04L

Abstract:
1. A pre-boot execution environment (PXE) server subnet filtering method in a computer system, the method comprising: excluding a PXE option from a first address request issued by the PXE client; broadcasting the first address request to at least one dynamic hog control protocol (DHCP) server and receiving in response an assigned network address; including a PXE option in a second address request issued by the PXE client along with the assigned network address; broadcasting the second address request to multiple different PXE servers and receiving in response from a single one of the PXE servers a reference to boot logic depending upon at least a portion of the assigned network address; and, retrieving and executing the boot logic in the PXE client, the boot logic comprising program code initially only broadcasting a DHCP request and subsequently receiving an IP address assigned by one of the at least one DHCP server, creating a new DHCP request including both a PXE request and the assigned IP address and broadcasting the new DHCP request.