1 / 20

Trends in IPv6

Trends in IPv6. Bill Cerveny Joint-Techs Workshop - Batavia, IL July 17, 2007. Outline. Motivation IPv6 Past IPv6 Present/Future. Motivation. A look at what has changed since 2001 A look at the current paradigms in IPv6. Heard at a seminar a long time ago.

elvis
Télécharger la présentation

Trends in IPv6

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Trends in IPv6 Bill Cerveny Joint-Techs Workshop - Batavia, IL July 17, 2007

  2. Outline • Motivation • IPv6 Past • IPv6 Present/Future

  3. Motivation • A look at what has changed since 2001 • A look at the current paradigms in IPv6

  4. Heard at a seminar a long time ago • Numerous vendors and organizations working on implementations • Wide-spread availability of IPv6 within two years • IPv4 address depletion sometime between 2005 and 2010

  5. Heard at a seminar a long time ago “Ipng: The Next Generation Internet Protocol,” Steve Deering, 1996 • Numerous vendors and organizations working on implementations • Wide-spread availability of IPv6 within two years • IPv4 address depletion sometime between 2005 and 2010

  6. Internet2 IPv6 Workshop #1 • Lincoln, Nebraska, May 2001 • Experimentation with DNS A6 • Microsoft introduced IPv6 “Technology Preview” for Windows 2000 • Cisco unrolled native IPv6 support in IOS 12.2.2T • KAME and USAGI stacks enabled IPv6 in BSD and Linux

  7. IPv6 Geographic Provider-Independent Addressing • Based on two (now expired) IETF Internet-Drafts by Tony Hain • IPv6 address based on longitude/latitude • Hain proposed to Internet2 community in January 2003 • Internet2 IPv6 Working Group created presentation and lab based on Hain’s I-D • Novel idea, many challenges

  8. Combined IPv4/IPv6 Routing Table Size • Assumes • IPv4 is not going away anytime soon • IPv6 aggregation is not happening • Combined routing table could outpace Moore’s Law • A major topic of concern within the IETF • Routing Research Group

  9. Unique Local Addressing (ULA)RFC 4193 • Replaces Site-local addressing • Future unclear; controversial

  10. Stateless Address Autoconfiguration • Practically every IPv6 implementation today supports stateless address autoconfiguration • Concerns about security, particularly auditing, among network admins

  11. DHCPv6 • Has been a long time coming • Windows Vista supports DHCPv6 • ISC DHCPv6 in alpha (4.0.0a1) • dibbler • Large scale implementations looking at DHCPv6

  12. DHCPv6 and Stateless Address Autoconfiguration • Can coexist. Three models: • Stateless Address Autoconfiguration only • Stateless Address Autoconfiguration with DHCPv6 • DHCPv6 only • Should a mixed Stateless Address Autoconfiguration / DHCPv6 environment be the norm for technical conferences?

  13. Tunneling Technologies • Most tunneling technologies perceived as security threats • A chicken-and-egg problem: Tunneling may be insecure, but it is one of the easiest ways of fostering IPv6 connectivity among early adopters

  14. Tunneling Technologies (2) • 6to4 • ISATAP • Teredo

  15. Multi-homing • Shim6 • Still a work in progress

  16. Flow Label • A QoSish feature perceived as a feature looking for a future application • Still looking for an application

  17. Tools • Juniper Netflow v9 support coming soon • Flowd - Support for both IPv4 and IPv6 Netflow • MRTG supports IPv6

  18. Acknowledgements • Bruce Curtis, North Dakota State University • John Brzozowski, Mid-Atlantic IPv6 Task Force • Sean Siler, Microsoft

  19. References • Internet2 IPv6 Working Group • http://ipv6.internet2.edu • IPv6 Routing / Routing Research Group • http://www3.ietf.org/proceedings/06nov/slides/v6ops-13.pdf • http://www3.tools.ietf.org/group/irtf/trac/wiki/RoutingResearchGroup • ISC DHCPv6 • http://www.isc.org/index.pl?/sw/dhcp/dhcp4_0.php • http://internecine.eu/software/dibbler_dhcpv6.html • Tools • http://www.mindrot.org/projects/flowd/ • http://www.ipflow.utc.fr/index.php/Main_Page • http://oss.oetiker.ch/mrtg/doc/mrtg-ipv6.en.html

  20. Thanks! • Ipv6@wjcerveny.com

More Related