Most of the TCP/IP SMF records currently contain IP addresses as part of their content. The data in these records is typically processed by programs, some of which are real-time SMF exits and others that post-process the SMF records after the records are created. The TCP/IP SMF type 119 record provides a standardized structure for all SMF records that TCP/IP provides. This structure includes a standard representation of IP addresses across all type 119 records, where IPv4 addresses are included in IPv4-mapped form and IPv6 addresses are included as is.

Type 118 FTP client and server transfer completion records are generated for IPv6 connections. In this case, the FTP records use IP addresses of 255.255.255.255 to indicate that the address cannot be included. All other type 118 SMF records are not generated for IPv6 connections.

For more information about SMF records, see z/OS Communications Server: IP Configuration Guide and z/OS Communications Server: IP Programmer's Guide and Reference.