ipv6 transition,transcición ipv6

© 2011 Cisco and/or its affiliates. All rights reserved. 1

Ralph Droms Cisco Distinguished Engineer

July 2011


• IPv4 address exhaustion

• Deploying IPv6 service

• Cisco as a partner in your planning and implementation

© 2011 Cisco and/or its affiliates. All rights reserved.

“Web Running Out of Addresses”

“We’re running out of

internet addresses”

“Why 4.2 Billion Internet

Addresses Just Weren't

Enough”

“Internet will run out of IP

addresses by Friday” 3 Feb, 2011

http://economictimes.indiatimes.com/


Network-Dependent Organizations are Already in Transition

World IPv6 Day

8 June 2011

Global event, more than

1000 participating sites

No major issues

Content providers ready

Network providers ready

http://www22.verizon.com/


160

140

120

100

80

60

40

20

0

2000 2002 2004 2006 2008 2010

Ad

dre

ss C

ou

nt (/

8s)

IANA Pool RIR Pool Projection


http://www.potaroo.net/tools/ipv4/rir.jpg

100

90

80

70

60

50

40

30

20

10

0 Jan 2011 Jul 2011 Jan 2012 Jul 2012 Jan 2013 Jul 2013 Jan 2014 Jul 2014 Jan 2015 Jul 2015

IANA APNIC RIPENCC ARIN LACNIC AFRINIC

Pro

babili

ty (

%)

Registry Exhaustion Dates April 2011

The rate of depletion

is accelerating!

Consistently beating

estimates


Ris

k f

rom

in

ac

tio

n

Early

Adopters

Globalization

IPv6 Government

Mandate Deadlines

IPv4/IPv6

Co-existence

2010 2012 2014

Transition

Planning 2012: Mandates take effect

Globalization and massive mobile

deployments force IPv6 transitions 2010: Low Impact

Shift if buying behavior limited

to mandated and early adopters

2014: IPv6 is mainstream

Providers without transition

infrastructure will experience reduced

service levels and customer reach

The longer you wait, the higher price you pay


• IPv6 is designed as a direct replacement for IPv4

Provides familiar best-effort datagram delivery

IPv6 address has a prefix to identify the destination subnet and a suffix to identify the host interface

Not backward compatible with IPv4; carried in parallel as a multi-protocol network

• 128-bit addresses solve address exhaustion problem

Prefix/suffix boundary effectively fixed at 64 bits

Fixed prefix makes address architecture a prefix assignment problem rather than a subnet size problem

64 bit identifier allows hosts to self-assign addresses, in addition to DHCP

• Home networks will use global IPv6 addresses

Restores full connectivity to devices in the home

Utilizes extensions to DHCPv6 for prefix assignment automation


Translation (NAT)

• Allows multiple local addresses to share single IP address

• Not true end-to-end connectivity

• Can create complications and disruptions

Dual Stack

• Typically easiest to implement

• Built into many modern operating systems

• Implements v4 and v6 independently, as well as in hybrid form

Tunneling

• Encapsulate v6 traffic in v4 packets (and vice versa)

• Can reduce efficiency

• Routing can be sub-optimal

…tunnel where you

need to…

“Dual stack when

you can…

…translate when you

must.”


Transition Tiers and Technologies

Preserve IPv4

2009 ~2011: v4 run out

3-Tier IPv4 to IPv6

Transition Strategy

v4

User

v4

Server

v4

Transport

v6

User

v6

Server

v6

Transport Transition Technology

■ ■ ■ NAT 44

■ ■ ■ A+P

■ ■ ■ 6rd

■ ■ ■ ■ ■ ■ Dual-Stack

■ ■ ■ ■ ■ Dual-Stack lite

■ ■ ■ ■ NAT64


Subscribers Provider IP NGN Internet

IPv4

IPv4

IPv4

Private IP

Private IP Moves into the SP

Private IP

Private IP

Private IP

Private IP

IPv4



Preserve IPv4

IPv4/IPv6 Coexistence Infrastructure

2009 ~2011: v4 run out

3-Tier IPv4 to IPv6

Transition Strategy

v4

User

v4

Server

v4

Transport

v6

User

v6

Server

v6


■ ■ ■ NAT 44

■ ■ ■ A+P

■ ■ ■ ■ ■ 6rd



■ ■ ■ ■ NAT64


IPv6

Private

IPv4

Private

IPv4

IPv4 IPv4

IPv4

Subscribers 6rd Internet

IPv6

IPv6


IPv4

Private

IPv4

Private

IPv4

IPv6

Subscribers Internet

IPv6

IPv6

IPv6

IPv4

IPv4


IPv4

Private

IPv4

Private

IPv4

IPv6

Subscribers NAT44 (“AFTR”) Internet

IPv6

IPv6

IPv6

IPv4



v4

User

v4

Server

v4

Transport

v6

User

v6

Server

v6


■ ■ ■ NAT 44

■ ■ ■ A+P

■ ■ ■ ■ ■ 6rd



■ ■ ■ ■ NAT64

Preserve IPv4

IPv4/IPv6 Coexistence Infrastructure

Services & Applications running over IPv6

2009 ~2011: v4 run out

3-Tier IPv4 to IPv6

Transition Strategy


IPv4

IPv6

Subscribers NAT64 Internet

IPv6

IPv6

IPv6


CM Bridge

Home Gateway

Service Provider Admin Domain

Customer Admin Domain

• Home Gateway initiates DHCPv4

Receives global (routable) IPv4 address

Gateway implements (stateful) NAT

Assigns, via DHCPv4, 192.168.x.x addresses to

home devices

Home Network

CMTSRouter

Servers

• DHCP, DNS

• TFTP

• TOD

• Management

CNR

CNR

BAC

BAC

Core To Internet HFC


CM Router

Service Provider Admin Domain

Customer Admin Domain

Home Network

CMTSRouter

Servers

• DHCP, DNS

• TFTP

• TOD

• Management

CNR

CNR

BAC

BAC

To Internet

HFC Link: Assigned 2001:DB8:FFFF:0::/64 (mgmt) and 2001:DB8:FFFE:0::/64 (Service)

Customer Home NetworkLink 0 (Wireless): Assigned 2001:DB8:0:30::/64

Customer Home NetworkLink 1 (Bridged): Assigned 2001:DB8:0:31::/64

Customer Home NetworkLink 2 (ZigBee): Assigned 2001:DB8:0:32::/64

Wireless Access Point

• CM Router initiates DHCPv6 after receiving RA Receives IPv6 address for HFC link

Receives 2001:DB8:0:30::/60 (prefix delegation)

Receives list of DNS servers and other configuration

CM Router must have stateful firewall

• CM Router assigns /64 prefixes from 2001:DB8:0:30::/60to customer network links

Ethernet Bridge

Core HFC

ZigBee


"At Cisco we are commited architecturally to IPv6 across the board:

All of our devices, all of our applications and all of our services."


Cisco offers CGv6 solutions for each phase of your transition

Preserve investments in infrastructure, assets, and delivery models

• Audit and leverage existing IPv6 capabilities • Maximize value and utilization of IPv4 resources

Prepare for smooth, incremental transition with interoperable IPv4 and IPv6 services

• Develop a migration and deployment plan • Identify and enable critical IPv6 functional areas

Prosper with the uninterrupted reach to globally connected customers

• Enable all systems for v4/v6 co-existence • Grow seamlessly as services transition to IPv6

Preserve

Prepare

Prosper


Prioritize Critical Areas of Your Business and Network

as You Scale Beyond IPv4

1. Identify the highest priority IPv6-critical areas in your network.

2. Assess those areas to determine the scope of your IPv6 design.

3. Develop a design that enables IPv6 to be introduced without disrupting your IPv4 network.

4. Test and implement IPv6 in pilot mode, then extend over time into production deployment.

5. Repeat steps for subsequent areas of your network through ongoing optimization.

IPv6 adoption must be addressed using a phased approach with careful validation and testing to avoid disrupting the IPv4 network or introducing vulnerabilities.

Solution Overview Through a Phased Approach, We Help You:

Proactively budget your time, money, and resources


IPv6

• Scalable and reliable solution

• Seamless integration and no disruption of subscriber

experience

Cisco Network Registrar


IPv6

• 4 million customers

• One of the world’s largest live IPv6-enabled residential

networks

IPv6 Residential Services with 6rd


IPv6

• Utilize existing architecture

• Integrate multiple types of networks and technologies

Full Range of IPv6 Solutions


IPv6

• Renew existing infrastructure

• Develop a 10-year strategy

Long-term Collaboration and Planning

http://www.telecom.com.ar/index.html


• Cloud-ready

• Reliable

• Fast and Scalable

• Consolidated IP

Address Management

• Extensible

• Low-risk and Reduced

Start-up Costs

DNS

• Single DNS server supports both IPv4 and IPv6 for device network access

• Standards compliant

• Single DHCP server supports both IPv4 and IPv6 for IP address translation and service delivery

• Over 50 million devices in a single customer deployment

• Internal and external client reservations

• Standards compliant

DHCP IPAM

• IPAM integrated with DNS and DHCP for configuration as well as reporting and management of IPv4 and IPv6


IPv6: Stateful and Stateless Configuration and Prefix Delegation

IPv4

Multi-Tenancy Support for

Cloud-Based DHCP and DNS

Business

Backup

Cluster

Cisco Network Registrar

Regional Cluster

Backup

Cluster

IP Next-Generation Network

Access Edge IP Core


• The IPv6 transition is under way and accelerating

• Preserve your infrastructure investments by implementing products that support dual-stack

• Cisco Network Registrar offers full lifecycle management for IPv4 and IPv6 and allows dual-stack deployments on a single server

• Cisco Services can help you quickly and cost-effectively assess your entire network infrastructure

• Cisco methodology is focused on enabling you to adopt IPv6 in a controlled, safe, and cost-effective manner, thereby reducing risk to your business


• www.cisco.com/go/cgv6 for Cisco Carrier-Grade

IPv6 Solution information

• www.cisco.com/go/ipv6 for general information on

IPv6, Cisco IPv6 Services, and IPv6 Transition Best Practices

• www.cisco.com/go/cnr for product literature,

documentation, white papers and more

• www.ciscoknowledgenetwork.com for information about an additional IPv6 webinar on Tuesday, September 6

http://www.cisco.com/go/cgv6

http://www.cisco.com/go/ipv6

http://www.cisco.com/go/cnr

http://www.cisco.com/go/cnr

http://www.ciscoknowledgenetwork.com/

Thank You

ipv6 transition,transcición ipv6

Technology

transition tiers

ipv6 transition

rights reserved

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stack dual

tier ipv4

v4 run

ipv4 network