• Tables summarizing z/VM-specific IPv6 features

• Starting in z/VM Release 5.1 and above:
  • The set of C and C++ language functions that are part of the OpenExtensions sockets and resolver interfaces were updated or extended to support IPv6. These interfaces are documented in the C/C++ for z/VM Run-Time Library Reference (SC09-7624).
  • A subset of the OpenExtensions callable services which are callable from Assembler and REXX were updated to support IPv6. These callable services are documented in the OpenExtensions Callable Services Reference (SC24-6105).
• Starting in z/VM Release 6.1 and above:
  • C and OpenExtensions sockets were updated to supported scope based routing. z/VM Release 6.1 requires APAR PM06209 for this support.
• Starting in z/VM Release 6.2 and above:
  • The SENDFILE command was updated to support IPv6.
  • The NOTE command was updated to support IPv6.
• Details of IPv6 support in CMS

• Starting in z/VM Release 4.4 and above, guests on a QDIO Guest LAN were able to define and use simulated OSA-Express devices supporting IPv6.
• Starting in z/VM Release 5.1 and above, IPv6 networks are possible with the ETHERNET (Layer 2) VSWITCH support. Guests on IP-type VSWITCHes can also send IPv6 traffic but only to other guests (it won't flow out the RDEV connection to the real hardware network). z/VM Release 5.1 requires CP APAR VM63538 and TCP/IP APAR PQ98202 for this support.
• Starting in z/VM Release 5.2 and above, guests on a HiperSockets Guest LAN were able to define and use simulated HiperSockets devices supporting IPv6. z/VM Release 5.2 requires APAR VM63850 for this support.
• z/VM Virtual Networking

• Starting in z/VM Release 5.1 and above:
  • The TCP/IP stack can be configured for IPv6 networks connected through OSA-Express operating in QDIO Ethernet mode. The stack can be configured to provide static routing of IPv6 packets and to send IPv6 Router Advertisements. The native z/VM TCP/IP applications that have been enhanced to support IPv6 are IFCONFIG, IPWIZARD, NETSTAT, PING, and TRACERTE.
• Starting in z/VM Release 5.2 and above:
  • The TCP/IP stack can be configured to provide static routing of IPv6 packets and send IPv6 Router Advertisements for HiperSockets QDIOIP link types. z/VM Release 5.2 requires APAR PK14010 for this support.
  • The MPROUTE server was updated to support the IPv6 RIP and OSPF protocols.
• Starting in z/VM Release 5.3 and above:
  • The failover support in the TCP/IP stack for QDIO Ethernet devices configured for IPv6 has been improved.
  • Virtual IP address support in the TCP/IP stack has been extended to support IPv6 addresses.
• Starting in z/VM Release 6.2 and above
  • The FTP server was updated to support IPv6.
  • The FTP client was updated to support IPv6.
  • The SMTP server was updated to support IPv6
• Details of IPv6 support in TCP/IP

Please direct questions, comments and feedback regarding z/VM's IPv6 support or any of the information on this page to:

Miguel Delapaz
z/VM Development
migueld@us.ibm.com