handle duplicate client identifier

[glenn.satchell at uniq.com.au]

With Ubuntu Xenial you can remove /etc/machine-id when cloning the 
system and it will be re-created with a new unique value on first boot. 
Similarly once systems are running you can remove the file and reboot. 
See machine-id(5) man page.

Otherwise as Steinar says add

ignore-client-uids true;

dhcpd.conf(5) man page will contain details if it is valid in your 
version.

regards,
-glenn

On 2019-06-14 16:44, sthaug at nethelp.no wrote:
>> Ok, it should be possible, and maybe the best way, to make the
>> machine-id unique on every client. But my question is, if there is a
>> way to prevent the server to use the client-identifier as a key
>> instead of MAC address ?
> 
> In newer versions of ISC DHCP you have "ignore-client-uids" available.
> Not sure if this exists in your version.
> 
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
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