Persistent DUID (DHCP Unique Identifier) for Server

Madhu Krishna Sandadi msandadi at nvtl.com
Thu Nov 24 12:11:55 UTC 2011


I would like to form DUID Based on Link-layer Address [DUID-LL].
Here my link layer address is 02:03:7F:BE:F0:A0.

Can you suggest how to generate the DUID based on above info.

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 Madhu Krishna Sandadi
Sent: Thursday, November 24, 2011 5:26 PM
To: Users of ISC DHCP
Subject: RE: Persistent DUID (DHCP Unique Identifier) for Server

Hi Bjørn,

Thank you for the info.

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.

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 2:43 PM
To: Users of ISC DHCP
Subject: Re: Persistent DUID (DHCP Unique Identifier) for Server

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

> Is there any way to configure or option to set the my own DUID for DHCP v6 Server.

You can set the dhcp6.server-id option in dhcpd.conf, but you will have to format it correctly yourself.  E.g. for type 2 (DUID-EN):

 option dhcp6.server-id "\000\002\000\000\227\334foo";


(don't copy this verbatim, but use your own Enterprise number if you are going to use this type).




Bjørn
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