This topic describes some general considerations for configuring IPv6 on z/OS®, including cases where multiple types of TCP/IP stacks are present.

In this topic, stack or TCP/IP stack is used as a generic term to describe a protocol stack that can be defined as a z/OS UNIX System Services AF_INET physical file system (PFS) in the BPXPRMxx parmlib member (for example, z/OS CS TCP/IP).