TCP/IPv6 Configuration and Management Manual (G06.24+)

IPv6 Fundamentals
HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008
A-9
Address Assignment
•
AAAA query
A query for a specified domain name in the Internet class returns all associated
AAAA resource records in the response.
•
IP6.INT domain for looking up a name for a specified address (address-to-name
mapping)
An IPv6 address is represented in reverse order as a sequence of 4-bit nibbles
separated by dots with the suffix .IP6.INT appended. For example, the IPv6
address 4321:0:1:2:3:4:567:89ab has this inverse lookup domain name:
b.a.9.8.7.6.5.0.4.0.0.0.3.0.0.0.2.0.0.0.1.0.0.0.0.0.0.0.1.2.3.4.IP6.INT
Address Assignment
IPv6 addresses are now being deployed by the regional registries. If you connect your
system to a network that already runs IPv6, your system will automatically configure
the IPv6 addresses it needs.
If you are a network administrator, contact your Internet Service Provider (ISP) for an
IPv6 address range for your site. For more information about regional registries and
address allocations, see the IANA web page at:
http://www.iana.org/ipaddress/ip-addresses.htm
Because of the need to test various implementations of the IPv6 RFCs, the IETF has
defined a temporary IPv6 address allocation scheme. You can assign the addresses in
this scheme to hosts and routers for testing IPv6 on the 6bone. For more information
about 6bone address allocation and assignment, see the 6bone home page at:
http://www.6bone.net
At the present time, the 6bone test addresses are aggregatable global unicast
addresses. For a 6bone address delegation, contact your 6bone service provider, for
example:
[e-mail]
These sections describe the aggregatable global unicast addresses and the
aggregatable testing addresses.
Aggregatable Global Unicast Address Format
The aggregatable global unicast address format for IPv6 supports the current provider-
based aggregation and the new exchange-based aggregation. Whether a site connects
to a provider or to an exchange, the address format enables efficient route aggregation
for either type. Aggregatable global unicast addresses have this form shown in
Figure A-9 on page A-10. See RFC 2374 for additional information.