DNS_EVENT_BAD_PACKET_LENGTH (Event ID 5501) on Windows Server 2022

Holli69
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DNS_EVENT_BAD_PACKET_LENGTH (Event ID 5501) on Windows Server 2022

Hi,

 

when we update the MX Firmware from 19.1.12 to stable Firmware 19.2.7, we get DNS_EVENT_BAD_PACKET_LENGTH (Event ID 5501) and the oversized DNS packets (EDNS0) are thrown away.

 

Had anyone the same issue in the past or yet and a solution for this behaviour ?

 

If we switched back again to 19.1.12, everything is okay without Event ID 5501.

So something changed between this 2 versions. Maybe, it's because of the IKEv2/Diffie Hellmann stronger encryption ?

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