SQLS-700 — TNS protocol version information
This message reports about Transparent Network Substrate Protocol version used by client. If this version is not known for the current version of the SQL*Net proxy, proxy cannot provide DB user check. For the list of known versions, see sqlnet-proxy(8) manual page.
The A-level message means that such traffic was not allowed by administrator and proxy aborts the session.
The W-level message means that administrator has already discovered this problem and has permitted such traffic. However, database user checking is still not applicable in this case.
The N-level message is only informational one.