- To accommodate full IPv6 address information, Netstat
reports were redesigned. If the TCP/IP stack is IPv6 enabled, reports
are displayed in a different format than with IPv4. This different
format might affect applications that parse Netstat output. The same
considerations apply to applications that use IP addresses in their
automation because IP addresses now have a longer size. If the TCP/IP
stack is not IPv6 enabled, the report format is changed only when
the FORMAT LONG parameter is specified on the Netstat command or on
the IPCONFIG statement in the TCP/IP profile.
- IPv6 statistic information is added to the Netstat STATS/-S report.
- Information regarding whether the stack is IPv6 enabled is added
to the Netstat UP/-u report.
- For a server that opens an AF_INET6 socket, binds to the IPv6
unspecified address (in6addr_any), and does a socketopt with IPv6_V6ONLY
against the socket, the local address information in the connection-related
reports contains the text (IPV6_ONLY).
Netstat ALLCONN/-a example on an IPv6-enabled stack:
MVS TCP/IP NETSTAT CS V1R6 TCPIP NAME: TCPCS 17:40:36
User Id Conn State
------- ---- -----
FTPABC1 00000021 Listen
Local Socket: 0.0.0.0..21
Foreign Socket: 0.0.0.0..0
FTPDV6 00000086 Listen
Local Socket: ::..21 (IPv6_ONLY)
Foreign Socket: ::..0
For more detailed information, see z/OS Communications Server: IP System Administrator's
Commands.