Application programs that have TCP/IP support can communicate directly with the Adabas nucleus via ADATCP.

• For mainframe applications, this capability is provided by a TCP/IP-enabled ADALNK. TCP/IP support for ADALNK was introduced in Adabas Version 8.5.1.

• Net-work kernels can also communicate with ADATCP. This allows non-mainframe applications to access an ADATCP database. It also allows a Net-Work kernel to act as a concentrator, or gateway. This, for example, can give many application programs access through a firewall via a single firewall port.

  Using a Net-Work gateway also allows application programs without TCP/IP support to communicate with ADATCP.