IPv6 Addresses

Like IPv4, IPv6 is a network-layer standard. It governs the addressing and routing of data packets over the network. IPv6 is an improvement over IPv4. IPv6 provides improvements in addressing, configuration, and security.

IPv6 addresses are 128-bit addresses, while IPv4 addresses are 32- bit addresses.

In full form, IPv6 addresses are written as eight 16-bit hexadecimal blocks separated by colons. For example:

fedc:ba98:7654:3210:fedc:ba98:7654:3210

You can use a double colon (::) to replace a series of consecutive zeros within an address as shown in the example below:

1080:0000:0000:0000:8:800:200c:417a 

This syntax is equivalent to the following:

1080::8:800:200c:417a

	NOTE: Only one double-colon (::) can be used to compress an IPv6 address.

IPv6 Support for External Services

This version of the HP-UX AAA Server can be configured to use IPv6 addresses and support IPv6 attributes for most of the protocols and services it supports. The HP-UX AAA Server currently supports only IPv4 for the following services:

• Dynamic user IP address assignment using DHCP

• Access to Oracle servers

• Access to RSA SecurID ™ servers

	IMPORTANT: This version of the HP-UX AAA Server supports only IPv6 attributes on HP-UX 11i v1. Communication over IPv6 is not supported on AAA servers running on HP-UX 11i v1.

RADIUS IPv6 Attributes

All RADIUS attributes defined in RFC 3162 are supported by the HP-UX AAA server. Listed below are the various IPv6 attributes supported by the HP-UX AAA Server:

• NAS-IPv6-Address

• Framed-IPv6-Prefix

• Framed-Interface-Id

• Framed-IPv6-Pool

• Login-IPv6-Host

• Framed-IPv6-Route

For more information on these IPv6 attributes, see “Syntax of IPv6 Attributes”.