[Kea-users] KEA upgrade 2.0.2 Empty DUIDs are not allowed

[John Dickinson]

On 17/06/2022 13:51, perl-list wrote:
> " DHCP4_PACKET_PROCESS_STD_EXCEPTION exception occurred during packet processing:
> Empty DUIDs are not allowed "
> 
> DHCPv4?  Why would there be a DUID in DHCPv4?  I would do a packet capture of the client traffic and see if there is indeed a DUID field in it somewhere and if it is indeed empty... that would be a broken client I would think.
> 
> ----- Original Message -----
>> From: "kea-users" <kea-users at lists.isc.org>
>> To: "kea-users" <kea-users at lists.isc.org>
>> Sent: Friday, June 17, 2022 5:54:50 AM
>> Subject: [Kea-users] KEA upgrade 2.0.2 Empty DUIDs are not allowed
> 
>> Hi,
> 
>> We've upgraded KEA from 1.8 to 2.0.2 yesterday.
>> About 8 hours after the upgrade we started seeing a spike in errors:
> 
>> DHCP4_PACKET_PROCESS_STD_EXCEPTION exception occurred during packet processing:
>> Empty DUIDs are not allowed
> 
>> This may be totally unrelated, and something has changed on the client side, but
>> was wondering if anyone else has seen this happen.
> 
>> Regards,
>> Emile

See RFC4361. This code was added recently to kea. But without re-looking 
at the I suspect you are correct that it is a bad client.

John