[Dnsmasq-discuss] bug: trunk DHCP offer/replies being ignored by some devices

[Kevin Darbyshire-Bryant]

On 07/04/17 23:00, Simon Kelley wrote:
> On 06/04/17 14:01, Pedro MG Palmeiro wrote:
>> Dnsmasq trunk replies are being ignored by some devices, in my case, two
>> epson printers (AL-M200).
>> Dnsmasq 2.76 works fine.
>>
>> This could be related with
>> http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;
>> =88a77a78ad27adc3ed87b7ee603643d26cb896ee

Has the 'could' been confirmed?  Otherwise the wrong problem is being fixed.

>>
>> Please refer to
>> https://bugs.lede-project.org/index.php?do=details&task_id=673
>> for tcpdumps.
>>
>
> But RFC 6842 assures us that no clients are broken by this change :)
>
> The options here, as I see it are
>
> 1) revert the change and don't support 6842
> 2) provide a way to disable the client-id reply for broken clients.
> 3) provide a flag to disable the client-id for all clients.
> 4) make the new behaviour optional, and provide a flag to enable it.
> 5) declare it No Our Problem and get the broken clients fixed.

For me: Option 2 - client specific fix for client specific bug.

Cheers,

Kevin