Ventajas de IPv6

IPv6 o no IPv6 - ¿Qué hacer? -

Recargar

Dr. Eduardo Castro Martínez

Microsoft MVP

[email protected]

http://comunidadwindows.org

http://tiny.cc/comwindows

http://ecastrom.blogspot.com

Session Objectives And Takeaways

• Session Objective(s):

– Identify the deployment blockers when deploying

IPv6

– Explain how to solve those blockers

– Recommend a staged migration

Agenda

• To

• IPv6…

• Or

• Not

• To

• IPv6…

• Q&A

IPv6 Fundamentals

• Introduction to IPv6

• Unicast IPv6 Addresses

• Configuring IPv6

IPv4 Limitations

The limitations of IPv4 are:

• Limited number of addresses

• Routing difficult to manage

• Host configuration is complex

• No built-in security

• Limited quality of service

IPv6 Improvements

Improvements in IPv6 include:

• Larger address space

• More efficient routing

• Simpler host configuration

• Built-in security

• Better prioritized delivery support

• Redesigned headers for efficient processing and

extensibility

IPv6 Address Space

The IPv6 address space is:

• 128 bits

• Extremely large

• Allows routing flexibility

IPv6 Address Syntax

IPv6 addresses are:

• Displayed in hexadecimal

• Can use zero compression

• Use a prefix to define the network portion of the address

rather than a subnet mask

Examples: 2001:0DB8:0000:0000:02AA:00FF:FE28:9C5A/64

2001:DB8:0:0:2AA:FF:FE28:9C5A/64

2001:DB8::2AA:FF:FE28:9C5A/64

Transition Technologies

Application Layer

Transport Layer (TCP/UDP

Network Interface Layer

IPv6 IPv4

DNS Server

A Query

AAAA Query

No Global IPv6 Address

At Least 1 Global IPv6 Address

A Query

IPv6 over IPv4 Tunneling

IPv6/IPv4

Node A

IPv6

Node B

IPv6/IPv4 Router

IPv4 or IPv6 Infrastructure

IPv6 over IPv4 tunnel

IPv4 Infrastructure

IPv6/IPv4

Node A

IPv6

Node B

IPv6/IPv4 Router


IPv4 Infrastructure IPv4 or IPv6

Infrastructure

IPv6/IPv4 Router

IPv4 or IPv6 Infrastructure

IPv6/IPv4

Node A

IPv6

Node B


IPv4 Infrastructure

Router to Router Host-to-Router or Router-

to-Host Host-to-Host

To IPv6 or Not To IPv6

• How many times have you been asked on how to disable

IPv6?


• CSS – in Particular CTS gets a lot of Support calls

regarding IPv6


• Microsoft Internal People are „bombing“ aliases with

queries regarding IPv6…


• But why do all these people try to disable this feature?

– Even Microsoft Internal people…


• Most Modern Operating Systems Support IPv6… Ours…

Vista+

– Apple (10.3), MAC OS X Leopard, BSD, HP-UX 22iv2,

AIX 6, Linux 2.6 Kernel and Solaris 2.10


• Let´s work on those points
















• There are some „valid“ points tough…



www.microsoft.com/ipv6

http://www.microsoft.com/ipv6







A bigger header is necessary due to the 128 bit IPv6 addresses but is not the only factor for network performance.

Other factors, such as a fixed-size header and negotiable MTUs help optimize forwarding and provide a better payload/header ratio.

A bigger problem in reality is that IPv6 is slow because there’s hardware offload support for IPv4 but not for IPv6 (e.g. in server NICs doing TCP checksum offload). Once similar offload support is provided for IPv6, there will be no comparative difference.


Final Word…

“Implementing IPv6 has consumed less than 1 percent of our IT budget, and the IT budget is only a small

part of the overall corporate budget. These costs are modest compared to the expected benefits.”

Fred Wettling, Bechtel Fellow and Technology Strategy Manager, Bechtel Corporation

IPv6 Resources

• IPv6 Web Site: www.microsoft.com/ipv6

• IPv6 Blog Site: http://blogs.technet.com/ipv6/

• Support Aliases: ipv6, nettalk

• Get Ready for IPv6? Ranjana Jain IT Pro Evangelist

Microsoft India

http://www.microsoft.com/

http://www.microsoft.com/ipv6

http://blogs.technet.com/ipv6/

http://blogs.technet.com/ipv6/

Related Content

• Breakout Sessions/Chalk Talks

– SVR202 IPv6 Field Kits for Services Personnel –

Providing End-to-End IPv6 Services to our Clients