IPv6 Transition: The way ahead & the need for preparedness

1. Wipro Webinar IPv6 Transition: The way ahead & the need for preparedness 07th December, 2011

2. Presenters

3. Agenda Industry Outlook to IPv6 Migration 1 Hindrances & Business Benefits of IPv6 Migration 2 Wipro’s Approach to Enable IPv6 Migration 3 BhartiAirtel IPv6 Migration Journey 4

4. Industry Outlook to IPv6 Migration

5. Transition to IPv6 has already begun IPv6 Transition / Migration Carriers and ISPs are all making for this transition now There are different methods and phases in making the transition by service providers • The catalyst is the increasingly smaller availability of IPv4 addresses but it is not the only reason Recent report indicates that service providers are moving already with plans for completion within one year’s time. Even though enterprise customers don’t seem to be concerned today; it will become critical in 2012 for service providers to be ready

6. Need for IPv6 It is more than just lack of addresses that are driving the need for the transition The IPv6 transition implementation plans vary and have distinct phases (Assess-Plan-Implement-Test) Devices, web resources, websites, content providers and network providers are all involved – “internet ecosystem” Similar to HD service, the entire value chain has to support IPv6 addressing (e.g. this ecosystem) Service providers need to finish their plan and now start to implement this migration to support IPv6 in all its services. This need will expand beyond the Asia-Pacific region quickly

7. Hindrances & Business Benefits of IPv6 Migration

8. Hindrances to IPv6 Migration

9. Business Benefits of IPv6 Migration Enables the “Internet of Things” Massive Address Space – No NAT Stateless Address Auto-Configuration Built in Security Framework Efficient Packet Processing and Routing Multicast Support

10. Wipro’s Approach to Enable IPv6 Migration

11. Wipro is Uniquely Positioned Winning in the Digital World • Today Wipro works with…. • 9 of the Top 15 Communication Service Providers • 4 of the Top 6 Mobile Device Vendors • 7 of the Top 10 Telecom Equipment Vendors • Top 3 Publishers • Top 2 Satellite Providers MEDIA Consumer Devices Cable & Satellite DIGITAL SECTOR TELECOM TECH Equipment

12. Wipro’s Comprehensive suite of Offerings • IPv6 Training Service • IPv6 Consulting Service • ( Business Continuity Plan) • IPv6 Migration Planning & Implementation • IPv6 • Business Continuity plan implementation

13. IPv6 Training Service IPv6 Basics (IPv6 Addressing, Features & Routing) IPv6 and IPv4 Coexistence Business Continuity Techniques IPv6 Migration technologies IPv6 Transitioning Techniques

14. IPv6 Consulting Service Understand Current IPv4 Address depletion status and business impact Study of the network and services • Jobs Identify areas of immediate impact and determine HW & SW upgrades Determine CAPEX & OPEX needs to achieve Business Continuity Document the business Continuity plan for short term • Plan for Business Continuity Time Line

15. Business Continuity Planning Planning & Implementation for IPv6 Ensure Business Continuity Design and build for IPv6 and IPv4 Coexistence Turn of IPv4 ( Many years away) Preparation should be such that design and build doesn’t become prohibitively expensive Design, Build and Migration should be achieved with minimal impact

16. Phase I • Assessment of Network Devices • Lab Setup, DNS & DHCP Migration • Application and OS Testing for IPv6 • Enabling IPv6 Device & Network Security • 6PE: IXP Connectivity and Peering • Enabling IPv6 Enterprise requirements • Enterprise VPN Services Plan & implementation • Phase II • Network Topology Assessment & IPv6 Addressing • Smart Phone & Mobile Device testing • Planning & Design for DSL/Cable/Wireless • Broadband Migration Plan using LSN 444, 6RD, • DS-LITE & Dual Stack • DSL Broadband Migration Wipro Approach • Phase III • Identify areas that IPv6 has not been covered • from Access networks point of view • Example: Migrating Pseudo wires using IPv4 • based targeted LDP Sessions • Implement solutions to address areas not • covered in Phase I, II and III • Phase IV • Turn off IPv4 • ( Many Years Away ) Phased Network Migration Plan

17. Bharti Airtel IPv6 Migration Journey

18. Urgency of IPV6! 2% Available • 232 = 4,294,967,296 • APNIC allocated all /8 in Feb 11 • 7 of last /8 being allocated by RIRs Source as on 05-Jan-11: http://www.potaroo.net/tools/ipv4/index.html

19. Network Operator puzzles Multiple transition approaches under study @ IETF How to balance trade-off between transition approach network architecture? Vendor readiness with end-to-end solution for commercial deployment? How to ease the introduction of IPv6, and ensure IPv4 service continuity? Amount of preparatory work to be done concerns NW operators

20. Mobile IPv4 vs. Mobile IPv6

21. Today’s World & the Ecosystem IPv4 World Today- The Starting Point Content N/w infra Device ISP Intl b/w

22. IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv6 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 IPv4 Mobility Perspective MIPv4/MIPv6 Inter-working Mobile IPv4 MIPv4/MIPv6 Inter-working MIPv4/MIPv6 Inter-working Mobile IPv6

23. IPv6 Header Data IPv4 Header Data IPv6 IPv4 IPv4 NW Data IPv6 Header IPv4 & IPv6 Network IPv6 IPv6 Data IPv6 Header IPv6 Header Data tunnel IPv4 host IPv6 host Application TCP/UDP IPv4 IPv6 Link Transition Tools Translators Tunnels Dual-Stack www.karnataka.gov.in IPv4 Header CGNAT IPv6/IPv4 co-existence • IPv6  IPv4 translation • IPv6 Tunneled over IPv4 IPv4 Host IPv6 Host • SOCKS64 • SIIT • NAT-PT • BIS • TRT • Configured • Automatic Tunnels • Tunnel broker • 6 to4 • 6 ver4

24. Transition Essentials • No “ D – Day for transition – unlike the Y2K transition • Last Internet transition was 1983 (NCP  TCP) • Transition will be incremental • Possibly over several years • No IPv4/IPv6 barriers at any time • Easy for end user • Non disruptive Transition • IPv6 is designed with transition in mind • Assumption of IPv4/IPv6 coexistence

25. Phases of Transition First Phase • N/w infra to support dual stack • Separate IPv6 islands in the network. • Most IPv6 services are provided in the operator network (Intranet). • Conventional IPv4 services are provided to the mobile users having IPv4 or dual stack terminals. Second Phase • IPv6 is widely deployed - numerous services are implemented on the IPv6 • IPv6 Internet does not yet have a 100 per cent • connectivity and tunneling via IPv4 Internet may still be needed.

26. Native IPV4 Terminal Three cases are shown • Connection to an IPv4 host in Intranet • Connection to an IPv4 host via public Internet • Connection to an IPv4 host via public Internet using private IP addresses and NAT in the operator network. Operator Network

27. Dual stack IPV4 terminal in IPV6 mode • The dual stack terminal is operating in IPv6 mode. • The packets are routed via IPv6 Internet or tunneled via IPv4 Internet to the peer host having a "6to4" type of address. • The edge router makes the "6to4" tunneling (encapsulation / decapsulation). Operator Network

28. The Co-Existence scenario

29. Conclusions • Transition urgency for India • Comprehensive planning and phased execution • Gradual, controlled transition to IPv6 in 2G / 3G mobile networks is feasible. • Transition mechanisms are vital, because the change from IPv4 to IPv6 is not going to happen overnight. • The principal transition mechanisms used are dual IPv4 / IPv6 stacks / tunneling and Translators (such as NAT-PT) depending on the infra readiness • The final target architecture is to make all services function on the IPv6 platform

31. Thank You Email your questions to sriram.tvs@wipro.com vismay.sood@wipro.com © 2011 WIPRO LTD | WWW.WIPRO.COM