Thanks, that helps a lot. I guess the part I was missing before was the 
multi-step DHCP requested. I assumed a DHCP client would get one and 
only reply from one server.

Cheers :)
James

Vaikar Amol wrote:
> Hi,
>  
> AFAIK, when one installs BMR BOOT Server on windows and configures the 
> PXE service using the BMR-Boot Server Assistant, a ProxyDHCP service 
> and a TFTP service gets configured on the Boot server.
>  
> After that, I believe this is the way it works:
> 1. DHCP discover is broadcasted from client, asking for IP address and 
> PXE boot server.
> 2. DHCP offer from DHCP server, offers IP address and other network 
> configuration settings. In your case, the Linux based DHCP server is 
> doing this.
> 3. DHCP offer from the ProxyDHCP server running on your windows boot 
> server, *offers* PXE boot server address.
> 4. DHCP request from client to DHCP server, requesting IP address.
> 5. DHCP acknowledge message from DHCP server.
> 6. DHCP request from client to the ProxyDHCP server server, requesting 
> the boot server address.
> 7. DHCP acknowledge message from ProxyDHCP server. This acknowledgment 
> contains the address to the Boot Server (which would be the address of 
> itself) and the first file that the client needs to send a TFTP 
> request for so as to start the boot process.
> 8. Client sends the TFTP request to the Boot server and gets the first 
> file for booting.
>  
> Does this answer your question?
>  
> For more details, you could take a look at:
> http://download.intel.com/design/archives/wfm/downloads/pxespec.pdf
>  
> HTH,
> Amol.
>  
>  
> */James Pattinson <jamesp AT hisser DOT org>/* wrote:
>
>     Hi All
>
>     Been playing with BMR on Solaris & Windows, and both seem to work
>     impressively well.
>
>     My issue is with the PXE booting on the Windows side - it works,
>     but I
>     have no idea how it's working. I have a UNIX DHCP server on my
>     network,
>     that's handing out IP addresses, but not TFTP server information.
>
>     How is my newly-booted client getting the address of the TFTP server?
>
>     I am trying to understand this to be able to turn around to my
>     customer
>     and tell that what the procedure will be in *their* network.
>
>     Cheers,
>
>     James
>
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