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IPv6 Deployment. North American Global IPv6 Summit June 24-27 2003 Jim Bound Chair IPv6 Forum Technical Directorate / Chair North American IPv6 Task Force Hewlett Packard Fellow Chris Mitchell

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Ipv6 deployment

IPv6 Deployment

North American Global IPv6 SummitJune 24-27 2003

Jim Bound

Chair IPv6 Forum Technical Directorate / Chair North American IPv6 Task Force

Hewlett Packard Fellow

Chris Mitchell

North American IPv6 Task Force Advisory Council / Microsoft Corporation - Lead Program Manager: Windows Networking and Communications


  • Review common perceptions of IPv6

  • Justification for IPv6

  • Current IPv6 realities

  • Review deployment options available

  • Discuss current deployment solutions

June 2003 Page 2

Perceptions of ipv6
Perceptions of IPv6

  • Common perceptions:

    • Security concepts are often viewed as vastly different from current practices

    • Often described and viewed as a complete replacement of the current Internet

    • Reasons for IPv6 have been eliminated by the development of Network Address Translation (NAT)

  • Implications:

    • Benefits of IPv6 often overlooked or questioned

    • Companies often have “Wait and see attitude”

    • Requires a business justification

June 2003 Page 3


  • There are a number of stated justifications

    • Security from avoidance of NAT

    • Routing

    • Stateless Address Configuration

    • Others……….

  • For End Users and IT Professionals justification comes from new experiences or capabilities

  • Example:

    • Review from today’s Keynote:

      • Pervasive Collaborative Computing experiences

        • Real-Time Communications (RTC)

        • Collaboration

        • Shared experiences

    • These experiences are better with peer to peer communication

    • Networks are more efficient using distributed models

      • Software updates can be retrieved from closest peer or server rather than from central location

  • Is IPv6 necessary?

June 2003 Page 4

Current challenges
Current challenges

  • The development and deployment of new experiences is difficult:

    • NATs deployed within networks (Enterprises, Branch offices, WiFi Hotspots, etc.)

    • Networks have a mix of private and public IP addresses

    • Firewalls prevent end to end connectivity

  • IT/Network administrators have to engineer point solutions to enable communication between applications and/or computers

  • Developers need to be network experts in order to develop successful applications

  • Mobility is increasing but not supported in the network

    • Users frustrated with broken experiences

  • June 2003 Page 5

    Ipv6 meets the challenges
    IPv6 meets the challenges

    • Enables next generation network-based applications without additional expense or expertise

    • Enables deployment of these applications without major investment in new network infrastructure

    • IPv6 addresses many of the challenges with today’s networks:

      • Global addressing (IPv6 has 1038 addresses)

        • Scaling well beyond IPv4 3 billion public endpoints

        • Allocations allow ISPs to provision many public addresses

        • Eliminates requirement for NATs and private addresses

        • Restores connectivity as appropriate

      • Secure

        • Anonymous addresses provide privacy across multiple sessions

        • IPSec enables host-based authentication and security at the IP layer to augment edge-based security or obscurity

      • Mobile solution

        • Mobile IPv6 solution does not require additional infrastructure or server-side routing

    June 2003 Page 6

    Meeting the challenges today
    Meeting the challenges, today!

    • Applications and solutions are shipping

      • Microsoft ThreeDegrees and Peer-to-Peer software development kit require IPv6 connectivity

      • Real-Time communication and Video streaming applications offered by Agora, Microsoft and others

    • Vendors are shipping commercial solutions:

      • Checkpoint, Nokia, Ericsson, Agora, WindRiver, Hitachi, Juniper, Cisco, NEC, Fujitsu, Yamaha, Hexago and more

      • Operating systems that support IPv6 platform solutions include AIX, HP-UX, True64, Windows XP and 2003, OpenVMS, NSK, Solaris, FreeBSD, NetBSD, Linux and more

    • Key takeaway: solutions and applications are available now

      • Independent Software Vendors and IT Professionals should take advantage of the support in core network infrastructure to build better tools and solutions for customers

        NOTE: The vendor list is not exhaustive but rather a sample; most vendors have IPv6 support today; if a vendor is not listed you should ask them

    June 2003 Page 7

    Deployment state
    Deployment state

    • Currently:

      • IPv6 deployments are often equated to full native support of IPv6-only

      • Several IPv6-only or native backbones, test networks and services are in production today

      • Mainstream customers and ISPs are not moving to IPv6 native due to a lack of customer demand and application support

    • Moving forward:

      • Deployment of IPv6 will happen with customer need

      • Deployment solutions need to be flexible and range from end-user to IT professional

    June 2003 Page 8

    How will ipv6 deployments occur
    How will IPv6 deployments occur?

    • Option 1: Transition and co-existence

      • Lower barrier to entry; network can change gradually

      • Legacy applications and services co-exist

      • Additional overhead and management are concerns

    • Option 2: Centralized deployment or Cutover

      • Simpler network, management

      • All applications must be upgraded

      • All tools, infrastructure and support systems must be upgraded or updated

    • Option 3: Hybrid

      • Begin with transition and co-existence automatically with applications

        • Transition technologies allow Developers to use IPv6 now!

      • Enable centralized deployments by getting full IPv6 support into all vendor hardware, software and tools

    June 2003 Page 9

    Typical deployment options
    Typical deployment options

    • Managed deployment

      • Enable IPv6 native or Tunnels within managed network

      • Use central automatic deployment solution like ISATAP

    • Automatic deployment

      • IPv6 installed or enabled with applications

      • Use well known services like Teredo, Tunnel Broker, or other transition mechanism

    June 2003 Page 10

    Managed deployment
    Managed deployment

    • Description:

      • Managed deployment is centralized and owned IT manager or engineer

      • Technology can require some configuration and must be manageable

    • Availability:

      • Lot of options available to IT managers:

        • Dual stack (i.e. native IPv6 and IPv4)

        • 6to4 Tunneling

        • ISATAP Tunneling

        • Native IPv6 with DSTM or NAT-PT

      • Network Equipment providers also support these technologies, for example:

        • Cisco, Hitachi, Juniper, 6WIND, and NEC

    June 2003 Page 11

    Automatic deployment
    Automatic deployment

    • Description:

      • Enable applications to depend on connectivity

      • Requires simple, zero configuration experience for end users

      • Must work in a variety of network topologies

      • May not work for all scenarios

    • Availability:

      • A few solutions available:

        • Teredo Tunneling

        • Host-based 6to4 Tunneling

        • Tunnel Broker

      • Example, Microsoft is shipping 6to4, ISATAP and Teredo in operating systems and with applications

        • All are made available to applications written (WinSock, DPlay, .NET Framework and RPC) to use IPv6

    June 2003 Page 12

    Solutions dual stack
    Solutions: Dual stack

    • All major router vendors support native dual stack:

      • Cisco = IOS 12.0S;12.2T/S;12.3M depending on hardware series; see www.cisco.com for specifics

        • To enable IPv6:


          configure terminal

          interface type number

          ipv6 enable


          ipv6 unicast-routing

      • Hitachi = GR2000; see www.internetworking.hitachi.com for specifics

        • To enable IPv6:

          Configure the port, example:

          line e1 ethernet 0/0

          IP e1 3ffe:501:811:ff01::/64

          RA interface e1

      • Juniper = All M-series platforms; see www.juniper.net for specifics

        • To enable IPv6:

          Configure an IPv6 address into “Inet6” configuration

          Configure router discovery under “protocols”

      • NEC = BlueFire routers and switches; see www.cng.nec.com for specifics

        • To enable IPv6:

          (config)#interface vlan 1

          (conf-vlan-1)#ipv6 enable

          (conf-vlan-1)#interface vlan 2

          (conf-vlan-2)#ipv6 enable


          (config)#ipv6 unicast-routing

      • 6WIND = 6WINDgate, edge, and NMS see www.6wind.com for specifics

    June 2003 Page 13

    Solutions tunneling
    Solutions: Tunneling

    • 6to4 Tunneling

      • Several router vendors support 6to4: Cisco, Hitachi, NEC, 6WIND

    • ISATAP Tunneling

      • ISATAP can be enabled on:

        • Cisco IOS 12.2(15)T

          • Enabled using configure command line interface

        • Microsoft Windows Server 2003 (www.microsoft.com/ipv6)

          • See ISATAP section in your IPv6/IPv4 Coexistence and Migration whitepaper included in your gift bag

        • Linux ISATAP (http://v6web.litech.org/isatap/)

          • Kernel 2.4.x with ISATAP (USAGI)

          • Modified IPRoute package (USAGI)

          • Radvd with ISATAP support (router only)

    • Teredo Tunneling

      • Teredo tunneling is a Internet draft:

        • Available on Windows XP SP1 with Advanced Networking pack

        • Enables IPv6 connectivity from behind existing IPv4 NAT devices

        • See http://www.ietf.org/internet-drafts/draft-huitema-v6ops-teredo-00.txtfor more information

    June 2003 Page 14

    Solutions native ipv6 to ipv4
    Solutions: Native IPv6 to IPv4

    • When native IPv6 becomes ubiquitous (or aggressive plan for Native IPv6) within a network there are a few options available to continue accessing “Legacy” networks without supporting Dual-Stack

    • DSTM:

      • Dual Stack Transition Mechanism (DSTM) allows IPv6 hosts within a network to access IPv4 Hosts by obtaining IPv4 addresses (using DHCPv6) within a dominant IPv6 native network, to avoid the use of IPv4 infrastructure or NAT, to communicate with IPv4 Hosts.

      • Supported on FreeBSD 3.4 and 4.x (KAME) and Linux

      • www.ipv6.rennes.enst-bretagne.fr/dstm/

    • NAT-PT:

      • NAT-Protocol Translation (NAT-PT) allows IPv6 hosts within a network using NAT-PT to access IPv4 devices via the NAT-PT enabled device

      • Supported on Cisco IOS 12.2T; NEC BlueFire

      • http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide_chapter09186a00801179e2.html

    June 2003 Page 15

    Training references and resources
    Training, references and resources

    • Training:

      • Cisco: Online Training materials available

      • Juniper: Class for configuring IPv6 in JUNOS

      • Tonex: IPv6 Fundamentals (onsite training)

      • Sunny Connection: IPv6 overview and Market Analysis

      • Microsoft: Updated Academic Learning Series TCP Title to contain IPv6 fundamentals releasing November 2003

      • Native6Group IPv6 Training Courses

    • Publications and references:

      • IPv6 Essentials written by Silvia Hagen published by O'Reilly & Associates (ISBN 0-5960-0125-8)

      • Understanding IPv6 written by Joseph Davies published by Microsoft Press (ISBN 0-7356-1245-5)

    • Development resources:

      • Microsoft:

        • MSDN: .Net Framework and WinSock reference guides

        • P2P SDK (overview tomorrow afternoon by Todd Manion)

      • Linux:

        • Several resources available

      • FreeBSD:

        • FreeBSD.org and others have v6 source and information

    • IPv6 Forum and NAv6TF

      • www.ipv6forum.com and www.nav6tf.org

  • Contact your vendors

  • June 2003 Page 16


    • IPv6 Deployment will happen with applications and use of applications

      Transition and co-existence technologies are available and can be usedby application developers to restore connectivity

    • Managed deployments can begin now with existing infrastructure in most situations

    June 2003 Page 17