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Intern
Posts: 30
Member Since: ‎12-31-2012
Message 1 of 1 (1,024 Views)

How HPDM PXE-DHCP WORKS??

 

The below process is for "MS WDS". could any one explain the pxe dhcp handshake process if hpdm differs in below intermediatary steps

 

PXE-DHCP Handshake looks like the following:

(DHCP and PXE service run on different machines)

DHCP Discover
· Client broadcast asking for IP address and PXE-capable DHCP service
· DHCP discover package contains option 60
· DHCP discover uses port 67 UDP

DHCP Offer
· Reply of the DHCP server containing IP address offering on port 68 UDP
· Reply of the DHCP or PXE server containing option 60

DHCP Request
· Client broadcast, ready to acknowledge IP address and boot server (port 67 UDP)

DHCP Ack
· Server broadcast, acknowledge clients IP address and lease (port 68 UDP)

DHCP Request
· Client unicast request for options 66 (boot server) and option 67 (bootstrap file) (port 4011 UDP)
· Unicast addresses server which offered option 60

DHCP Ack
· Server ack from PXE server including options 66 and 67

Start of the bootstrap file download using TFTP (UDP 69 and UDP high level ports)

 

 

Thank you

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