Hi,

How does replay protection of Post-handshake messages work in DTLS 1.3 if the 
per-record replay-protection mechanism is turned off?

1. Is the post-handshake messages replay protected in some other way, which I 
miss?

2. Should RFC 9147 state that the per-record replay-protection mechanism can 
only be turned off for application data? (I could not find anything in RFC 9147 
stating something like this).

(things like post-handshake authentication need replay protection in some way)

Cheers,
John Preuß Mattsson
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