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Why the need to migrate to IPv6?

Comparison between IPv4 and IPv6 IPv4 uses 32 bit addresses and can support 4.3 billion devices. IPv6 uses 128 bit addresses and can support 2 to the 128th power devices

Understanding IPv4

Understanding IPv4 (Cont.)

Understanding IPv4 (Cont.)

Migration Process Auditing the networking and other hardware devices for IPv6 compliance Auditing the Operating Systems and Applications Procurement of IPv6 compliant hardware and software Transition plan Setup of IPv6 pilot network

Migration Technologies Dual Stack Tunneling Translation

Migration Technologies Dual Stack: A common dual stack migration strategy is to make the transition from the core to the distribution to the access layer.

Migration Technologies Tunneling: Tunnels take IPv6 packets and encapsulate them in IPv4 packets to be sent across portions of the network that haven’t yet been upgraded to IPv6.

Migration Technologies Tunneling (Cont.): Tunnel need less infrastructure Deep packet inspection of tunnel is difficult

Migration Technologies Translation: Translation techniques perform IPv4-to-IPv6 translation (and vice versa) at a particular layer of the protocol stack, typically the network, transport or application layer

Migration Technologies Translation (Cont.) Unlike tunneling, which does not alter the tunneled data packet, translation mechanisms do modify or translate IP packets commutatively between IPv4 and IPv6.

Migration Technologies Translation (Cont.) Translation approaches are generally recommended in an environment with IPv6- only nodes communicating with IPv4-only nodes.

IPV6 ROLLOUT PLANS OF SERVICE PROVIDERS

IPv6 Status Today in India Major ISP TCL, Bharti, Reliance, SIFY etc in India are ready for IPv6 Services. IPv6 Penetration in India is less than 1% Many ISPs lack the network infrastructure to handle IPv6 Access Infrastructure not IPv6 ready IPv6 Penetration in Broadband /Mobile Internet is Nil Few ISP like TCL, Sify, BSNL, Bharti , TTSL have domestic peering with NIXI No IPv6 Content available in India

No IPv6 Request from Customers for the following reasons ISP still provides IPv4 Address Customer not ready to upgrade infrastructure due to additional Capex Lack of Training and Awareness Need to remove legacy network and desktop assets Lack of Low Cost IPv6 Compliant CPE Equipment.

Existing services transition required Enterprise customer with multiple location (connected through leased lines or over MPLS) Broadband (ADSL) Customers Mobile Wireless (GSM, CDMA, 3G) customers WiMAX Customers ISPs who are taking bandwidth Narrow-band Dial-up customers(No IPv6 services) Servers, backbone and access equipment Leased Line Customers

Service providers plans PRESERVE >>>> PREPARE >>>> PROSPER IPv6 Addressing Plan IPv6 Routing IPv6 Peering IPv6 Application Servers IPv6 Network Monitoring and Management IPv6 support in Access Equipment Test IPv6 Applications and Services

Action plan for service providers

Action plan for Govt. Departments

Action Plan For TIFR 1. Prepare an Inventory for hardware & Software for IPV6 Compliance. 2. Generate Reports based on Inventory. 3. Make the Router, Firewall, Core switch and distribution switches ready for handling IPv6 traffic. 4. Design applications which are IPv6 compliant.

Action Pan For TIFR (Cont.) In the initial phase we will have to go for Dual stack configuration. A test bed has to be configured before making anything live. Hence the immediate step should be to prepare a test bed where applications can be tested for connectivity, integrity, feasibility and most important security before putting into production.

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