Invalid class in dns query

John Levine johnl at
Thu Aug 6 00:11:29 UTC 2020

In article <mailman.785.1596588400.942.bind-users at> you write:
>Hi all,
>Looking for a temporary work around, while an issue gets resolved. I have a
>DNS query coming in with an invalid class requested (65 or 0x41).

The only classes ever assigned were 1, 2, 3, 4, and pseudo-classes 254 and 255.

What is class 65 supposed to be?  Why would anything that wasn't totally broken query for it?


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