> Can you reproduce the server error with 'openssl s_client'? E.g.
> something like the following, perhaps futzing with -psk* options in addition 
> to -dtls/-dtls1/-dtls1_2…
>
>   openssl s_client -debug -dtls -connect 10.215.0.62:8443

Thanks for the tip about using s_client.

I'm not familiar enough with DTLS to know what PSK to use for DTLS (isn't it 
output from the AnyConnect
authentication phase?) but I did try the above with no additional options.

The server doesn't respond to the ClientHello, but I can see that it has 
DTLS1.2 in the handshake.

If I use -dtls1 instead, then the version in the handshake is DTLS1, as one 
would expect.

Will dig into it further.

MV
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