Persistent DUID (DHCP Unique Identifier) for Server

Madhu Krishna Sandadi msandadi at nvtl.com
Thu Nov 24 12:43:14 UTC 2011


My link layer address is 02:03:7F:BE:F0:A0.

So my DUID becomes..

option dhcp6.server-id      "\000\003\000\001\002\003\177\276\360\240";

Is it correct?

Thanks,
Madhu

-----Original Message-----
From: dhcp-users-bounces+msandadi=nvtl.com at lists.isc.org [mailto:dhcp-users-bounces+msandadi=nvtl.com at lists.isc.org] On Behalf Of Bjørn Mork
Sent: Thursday, November 24, 2011 5:46 PM
To: Users of ISC DHCP
Subject: Re: Persistent DUID (DHCP Unique Identifier) for Server

Madhu Krishna Sandadi <msandadi at nvtl.com> writes:

> I would like to form DUID Based on Link-layer Address [DUID-LL].
> My linklocal address is " fe80::3:7fff:febe:f0a0 "
>
> Can you suggest how to generate the DUID based on above info.

It's pretty clear from the RFC:
http://tools.ietf.org/html/rfc3315#section-9.4

So for ethernet that would be

 option dhcp6.server-id "\000\003\000\001<your ethernet mac address in octal here>"



Bjørn
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