[RFC-1034] Mockapetris, P., "Domain names - concepts and
facilities", STD 13, RFC1034, November 1987.
[RFC-2529] Carpenter, B. and C. Jung, "Transmission of IPv6 over
IPv4 Domains without Explicit Tunnels", RFC2529, March
1999.
[RFC-2205] Braden, R., Zhang, L., Berson, S., Herzog, S. and S.
Jamin, "Resource ReSerVation Protocol (RSVP) -- Version 1
Functional Specification", RFC2205, September 1997.
[RFC-3314] Wasserman, M., Editor, "Recommendations for IPv6 in Third
Generation Partnership Project (3GPP) Standards, RFC
3314, September 2002.
[RFC-3481] Inamura, H., Montenegro, G., Ludwig, R., Gurtov, A. and
F. Khafizov, "TCP over Second (2.5G) and Third (3G)
Generation Wireless Networks", BCP 71, RFC3481, February
2003.
[UMTS-AKA] 3GPP Technical Specification 3GPP TS 33.102, "Technical
Specification Group Services and System Aspects; 3G
Security; Security Architecture (Release 4)", 3rd
Generation Partnership Project, December 2001.
7. Contributors
This document is based on the results of a team that included Peter
Hedman and Pertti Suomela in addition to the authors. Peter and
Pertti have contributed both text and their IPv6 experience to this
document.
8. Acknowledgements
The authors would like to thank Jim Bound, Brian Carpenter, Steve
Deering, Bob Hinden, Keith Moore, Thomas Narten, Erik Nordmark,
Michael Thomas, Margaret Wasserman and others at the IPv6 WG mailing
list for their comments and input.
We would also like to thank David DeCamp, Karim El Malki, Markus
Isomaki, Petter Johnsen, Janne Rinne, Jonne Soininen, Vlad Stirbu and
Shabnam Sultana for their comments and input in preparation of this
document.
Appendix A - Cellular Host IPv6 Addressing in the 3GPP Model
The appendix aims to very briefly describe the 3GPP IPv6 addressing
model for 2G (GPRS) and 3G (UMTS) cellular networks from Release 99
onwards. More information can be found from 3GPP Technical
Specification 23.060.
There are two possibilities to allocate the address for an IPv6 node:
stateless and stateful autoconfiguration. The stateful address
allocation mechanism needs a DHCP server to allocate the address for
the IPv6 node. On the other hand, the stateless autoconfiguration
procedure does not need any external entity involved in the address
autoconfiguration (apart from the GGSN).
In order to support the standard IPv6 stateless address
autoconfiguration mechanism, as recommended by the IETF, the GGSN
shall assign a prefix that is unique within its scope to each primary
PDP context that uses IPv6 stateless address autoconfiguration. This
avoids the necessity to perform Duplicate Address Detection at the
network level for every address built by the mobile host. The GGSN
always provides an Interface Identifier to the mobile host. The
Mobile host uses the interface identifier provided by the GGSN to
generate its link-local address. The GGSN provides the cellular host
with the interface identifier, usually in a random manner. It must
ensure the uniqueness of such identifier on the link (i.e., no
collisions between its own link-local address and the cellular
host's).
In addition, the GGSN will not use any of the prefixes assigned to
cellular hosts to generate any of its own addresses. This use of the
interface identifier, combined with the fact that each PDP context is
allocated a unique prefix, will eliminate the need for DAD messages
over the air interface, and consequently allows an efficient use of
bandwidth. Furthermore, the allocation of a prefix to each PDP
context will allow hosts to implement the privacy extensions in RFC
3041 without the need for further DAD messages.
Authors' Addresses
Jari Arkko
Ericsson
02420 Jorvas
Finland
EMail: jari.arkko@ericsson.com
Gerben Kuijpers
Ericsson
Skanderborgvej 232
DK-8260 Viby J
Denmark
EMail: gerben.a.kuijpers@ted.ericsson.se
John Loughney
Nokia Research Center
Itamerenkatu 11 - 13
FIN-00180 HELSINKI
Finland
EMail: john.loughney@nokia.com
Hesham Soliman
Ericsson Radio Systems AB
Torshamnsgatan 23, Kista, Stockholm
Sweden
EMail: hesham.soliman@era.ericsson.se
Juha Wiljakka
Nokia Mobile Phones
Sinitaival 5
FIN-33720 TAMPERE
Finland
EMail: juha.wiljakka@nokia.com
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