[Dnsmasq-discuss] dnsmasq 2.91 DUID in leases file format

[Gino McCarty]

Hello, having trouble sourcing documentation, on this leasing file format behavior and hoping you can help.

in my leases file some machines generate the following format

```

duid 00:01:00:01:2f:f0:f6:60:2c:cf:67:af:44:ab

```

I can find no documentation for this syntax, normally I would ignore this except it is throwing an error in Google's dnsmasq_exporter which I use to generate Prometheus metrics from dnsmasq data.

See: https://github.com/google/dnsmasq_exporter/issues/33

Any documentation or guidance would be helpful

Google seems unwilling to just ignore the line without additional context.

Thanks,

Gino

On Monday, June 30th, 2025 at 12:01 AM, Gino McCarty <onigino at protonmail.com> wrote:

> Hello, having trouble sourcing documentation, on this leasing file format behavior and hoping you can help.
>
> in my leases file some machines generate the following format
>
> ```
>
> duid 00:01:00:01:2f:f0:f6:60:2c:cf:67:af:44:ab
>
> ```
>
> I can find no documentation for this syntax, normally I would ignore this except it is throwing an error in Google's dnsmasq_exporter which I use to generate Prometheus metrics from dnsmasq data.
>
> See: https://github.com/google/dnsmasq_exporter/issues/33
>
> Any documentation or guidance would be helpful
>
> Google seems unwilling to just ignore the line without additional context.
>
> Thanks,
>
> Gino
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