Re: How to add a second DHCP server in a network to use PXE boot without conflict with the first one ?
- From: steranka <JM@xxxxxxxxxxxxxxxxxxx>
- Date: Mon, 27 Nov 2006 13:45:20 -0500
In article <4395a888$0$29625$636a15ce@xxxxxxxxxxxx>, nomail@xxxxxxx says...
May be, someone knows where I can find any information about it ?
I recently learned all about PXE boot when getting Ghost backups to work
over the network using PXE Boot. So I can't answer your exact question
but I can provide some other info...
My understanding is that the PXE Client "is" a DHCP client but with a slight twist.
The client includes an option that says it's a PXE client. Below is how the option
appears in WireShark:
Option: (t=60,l=32) Vendor class identifier = "PXEClient:Arch:00000:UNDI:002001"
So you would need the DHCP server to support recognizing this option or perhaps ignoring
DHCP requests that have that option. I don't know if this is possible.
PXE is designed to work with multiple DHCP servers sending information so
I believe it's possible for both a PXE server and DHCP server to co-exist.
That is one configuration I've tested.
You should see http://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol
for a description of how DHCP works because PXE is a variant on DHCP.
The following http://www.3com.com/other/pdfs/infra/corpinfo/en_US/pxe.pdf describes
how PXE works.
Again, these aren't answers but hopefully they'll help you find out more about
how it works so you can see if DHCP servers can be configured to filter these
PXE requests.
Regards,
Patrick Steranka
.
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