What's new for V5R4

This topic highlights the changes made to this topic collection for V5R4.

IPv6 support enhancements

New Internet Protocol version 6 (IPv6) functions are consistent at the product level with their respective IPv4 counterparts.

IPv6 is now supported for the following functions:

Loopback
All Ethernet adapters (10/100 Mbps, 1 Gbps, and 10 Gbps)
Virtual Ethernet between partitions

Multiple Ethernet adapters can be used simultaneously with IPv6.

IPv6 now supports the following functions:

Multicast
Fragmentation and reassembly
Basic socket extensions (RFC 3494)

IPv6 configuration

The Start and Stop TCP/IP actions on the TCP/IP Configuration folder were removed.
IPv6 can be started and stopped in the same way as IPv4 with Start TCP/IP (STRTCP) and End TCP/IP (ENDTCP) commands. IPv6 cannot be started or stopped independent of IPv4.
The IPv6 loopback interface, ::1, is automatically created by default when TCP/IP is started.

The IPv6 Configuration Wizard was removed.
You can use the new interface to configure Stateless Address Autoconfiguration.
You can also use the new wizard to create IPv6 interfaces.
The Configure, Start, Stop, and Remove functions for a line were added to the context menu in the IPv6 Stateless Address Autoconfig display.

Alias names

In IPv4 and IPv6, you can now use alias names. You can specify a name that identifies an interface in either IPv4 or IPv6, instead of using the dotted decimal notation. Interface alias names can be configured using both control language (CL) commands and iSeries™ Navigator.

Preferred interface list

You can now create a preferred interface list to select which adapters and IP addresses will be the preferred interface for the virtual IP address proxy Address Resolution Protocol (ARP) agent selection. This is available for both virtual IP addresses and virtual Ethernet.

What's changed for V5R4

Tunnels are no longer supported in IPv6:

IPv6, IPv4, and Point-to-Point Protocol over Ethernet (PPPoE) can be used on the same adapter.
Network routers can be used to send IPv6 packets over an IPv4 network.

IPv6 configurations from previous releases will not be migrated to V5R4.

How to see what's new or changed

To help you see where technical changes have been made, this information uses:

The image to mark where new or changed information begins.
The image to mark where new or changed information ends.

To find other information about what's new or changed this release, see the Memo to users.