[syslinux] Client-identifier option in PXE search order

Andrew Wray andywray at us.ibm.com
Thu Nov 2 11:41:32 PST 2006


Nir,

We have to use special settings in DHCP to use the UUID.  It requires
the ISC DHCP server v3.0.  Here's what the dhcpd.conf looks like:

                class "c6.cluster4" { #CSM CLASS FOR c6.cluster4
                        match if substring(option client-guid,1,16) =
be:57:32:c6:e8:1d:b2:11:8d:f3:ca:8c:18:95:4f:29;
                }
                pool { #CSM POOL FOR c6.cluster4
                        allow members of "c6.cluster4";
                        range 10.64.40.6;
                        option domain-name "cluster4";
                        option host-name "c6.cluster4";
                        option routers 10.64.0.1;
                }


This allows us to bind the UUID to IP, and then pxelinux branches based
on the IP...

On Tue, 2006-10-31 at 10:01 +0200, Nir Gal wrote:
> Hello,
> 
> I am trying the DHCP 209 option however I understood there is an option
> to use UUID.
> My question is the UUID part of the PXELINUX search order ?
> 
> According to my knowledge the search is :
> MAC
> IP ( with all class option )
> Default
> 
> Is there anything else ?
> 
> _________________________________________________
> 
> Nir Gal   |  +972-9-9717685 (o)   |   +972-54-499-6633 (m)
> 
> Manager, Customer Support
> 
> Voltaire - The Grid Backbone
> 
> www.voltaire.com
> 
> 
> -----Original Message-----
> From: H. Peter Anvin [mailto:hpa at zytor.com] 
> Sent: Monday, October 30, 2006 8:46 AM
> To: Nir Gal
> Cc: syslinux at zytor.com; Moni Levy
> Subject: Re: [syslinux] Client-identifier option in PXE search order
> 
> Nir Gal wrote:
> > Hello,
> > 
> > I am not sure I follow, are these changes can be done in the PXELINUX 
> > code ?
> > I have a setup with DHCP which can assign IP address to servers based 
> > on their client-identifier , but my problem is that the PXELINUX 
> > search order ( MAC , IP ... ) doesn't try to mach the client
> identifier.
> > 
> > Can you add this request to the TODO list of PXELINUX ?
> > 
> 
> I can, but you can use option 209 in the DHCP server to produce the same
> result, too.
> 
> See pxelinux.doc.
> 
> 	-hpa
> 
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