reference resources https://datatracker.ietf.org/doc/rfc6143/?include_text=1
A.2. Differences in the Version 3.7 Protocol
After the security handshake, if the security-type is 1, for no
authentication, the server does not send the SecurityResult message
but proceeds directly to the initialization messages (Section 7.3).
… the SecurityResult message
reference resources https://datatracker.ietf.org/doc/rfc6143/?include_text=1 A.2. Differences in the Version 3.7 Protocol
After the security handshake, if the security-type is 1, for no authentication, the server does not send the SecurityResult message but proceeds directly to the initialization messages (Section 7.3).