[ipxe-devel] custom dhcp client_id option

[Maule Mark]

I noticed that.  However, dnsmasq only considers client_id (if present) followed by hwaddr when looking up configs in its hostsfile.  I've tried hacking around that in dnsmasq (by trying to match client_uuid if present and no client_id match), but the code is pretty tangled and it's not clear to me that this would be spec compliant anyway.
Mark
 
      From: Michael Brown <mcb30 at ipxe.org>
 To: Maule Mark <mark_maule at yahoo.com>; "ipxe-devel at lists.ipxe.org" <ipxe-devel at lists.ipxe.org> 
 Sent: Tuesday, April 12, 2016 8:23 AM
 Subject: Re: [ipxe-devel] custom dhcp client_id option
   
On 08/04/16 20:05, Maule Mark wrote:
> I have a project where it would be useful for me to set a custom
> client_id when using dhcp to configure a network interface.
>  Specifically, in my case I'd like to pass the SMBIOS uuid as the
> client_id for an infiniband port instead of the port GUID.  In my
> application, I can guarantee that only one port will be making dhcp
> requests to the server, and this would allow my node to get the a
> consistent ipaddr/hostname from dnsmasq no matter which port the node
> pxe booted from.
>
> I can hack the code for my own purposes, but was wondering if there
> might be interest in having this as a general ipxe setting.  I'm willing
> to do the work and push it if this seems reasonable.

The SMBIOS UUID is already exposed in the DHCP request via the client 
UUID option.

Michael


   
 

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      From: Michael Brown <mcb30 at ipxe.org>
 To: Maule Mark <mark_maule at yahoo.com>; "ipxe-devel at lists.ipxe.org" <ipxe-devel at lists.ipxe.org> 
 Sent: Tuesday, April 12, 2016 8:23 AM
 Subject: Re: [ipxe-devel] custom dhcp client_id option
   
On 08/04/16 20:05, Maule Mark wrote:
> I have a project where it would be useful for me to set a custom
> client_id when using dhcp to configure a network interface.
>  Specifically, in my case I'd like to pass the SMBIOS uuid as the
> client_id for an infiniband port instead of the port GUID.  In my
> application, I can guarantee that only one port will be making dhcp
> requests to the server, and this would allow my node to get the a
> consistent ipaddr/hostname from dnsmasq no matter which port the node
> pxe booted from.
>
> I can hack the code for my own purposes, but was wondering if there
> might be interest in having this as a general ipxe setting.  I'm willing
> to do the work and push it if this seems reasonable.

The SMBIOS UUID is already exposed in the DHCP request via the client 
UUID option.

Michael


   
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