APPC (LU6.2) session security

So far, all the discussion has been about the security CICS® performs for transactions running within a single CICS region, with its own resources and terminal network. A number of CICS regions can also be connected by means of intercommunication; for example, intersystem communication (ISC) using an SNA access method, such as ACF/VTAM, to provide the necessary communication protocols. This method is normally used for communication between CICS regions residing in different host computers, but it can also connect CICS regions in the same host computer. See Introduction to CICS intercommunication for more information about CICS intercommunication facilities.

One of the ISC protocols that CICS uses is for advanced program-to-program communication (APPC), which is the CICS implementation of the LU6.2 part of the SNA architecture.

For interconnected systems, the same basic security principles apply, but the resource definition is more complex, and you have additional security requirements. CICS treats APPC sessions, connections, and partners as resources, all of which have security requirements. CICS provides the following security mechanisms for the APPC environment:

See Implementing LU6.2 security for more information.