This class implements parts of Oracle TNS (Transparent Network Substrate) to enable clients to communicate with Oracle servers behind firewalls using port TCP/1521. This module is especially needed when tnslsnr (the TNS listener) is in Multi-threaded Server (MTS) mode.

The SQL*Net proxy does not analyze the whole protocol stream, as the data protocol of Oracle operates on top of TNS.

An example for the SQL*Net connection string is provided in Example A.1, An example for the SQL*Net connection string .