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WELCOME ALL
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 IPv6only nodes communicating with IPv4-only
nodes.
IPV6 ROLLOUT PLANS OF SERVICE
PROVIDERS
IPv6 Status Today in India
1. Major ISP TCL, Bharti, Reliance, SIFY etc in
India are ready for IPv6 Services.
2. IPv6 Penetration in India is less than 1%
3. Many ISPs lack the network infrastructure to
handle IPv6
4. Access Infrastructure not IPv6 ready
5. IPv6 Penetration in Broadband /Mobile Internet
is Nil
6. Few ISP like TCL, Sify, BSNL, Bharti , TTSL
have domestic peering with NIXI
7. No IPv6 Content available in India
No IPv6 Request from Customers for
the following reasons
1. ISP still provides IPv4 Address
2. Customer not ready to upgrade
infrastructure due to additional Capex
3. Lack of Training and Awareness
4. Need to remove legacy network and
desktop assets
5. Lack of Low Cost IPv6 Compliant CPE
Equipment.
Existing services transition
required
1. Enterprise customer with multiple location (connected
through leased lines or over MPLS)
2. Broadband (ADSL) Customers
3. Mobile Wireless (GSM, CDMA, 3G) customers
4. WiMAX Customers
5. ISPs who are taking bandwidth
6. Narrow-band Dial-up customers(No IPv6 services)
7. Servers, backbone and access equipment
8. Leased Line Customers
Service providers plans
PRESERVE >>>> PREPARE >>>> PROSPER
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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.
THANK YOU