Ipv6 for Dummies

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  • Topic: IPv6, IP address, Teredo tunneling
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  • Published : April 13, 2012
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IPv6 for Dummies

Janne Östling janoz@cisco.com

BRKRST-2301 14340_04_2008_c2

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Public

1

Agenda
  General Concepts
–  Addressing –  Routing –  QoS –  Tunnels –  NAT

  Infrastructure Deployment
Campus/Data Center WAN/Branch Remote Access

  Planning and Deployment Summary   Appendix & Hidden slides — for Reference Only! (240 slides total so far…) BRKRST-2301 14340_04_2008_c2 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Public

2

Preamble

BRKRST-2301 14340_04_2008_c2

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Public

3

A Need for IPv6?
  IETF IPv6 WG began in early 90s, to solve addressing growth issues, but CIDR, NAT,…were developed

  IPv4 32 bit address = 4 billion hosts
~40% of the IPv4 address space is still unused which is different from unallocated The rising of Internet connected device and appliance will eventually deplete the IPv4 address space

  IP is everywhere
Data, voice, audio and video integration is a reality Regional registries apply a strict allocation control

  So, only compelling reason: More IP addresses
BRKRST-2301 14340_04_2008_c2 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Public

4

Reflection - Denial
IPv4 lifetime IANA Pool
Jan '00 history basis
128

96
IPv4 lifetime IANA Pool Jan '00 history basis

64

64

32
32

0 jan-99 jan-01 jan-03 jan-05 jan-07 jan-09 jan-11 jan-13
0 jan-11

jan-12

jan-13

jan-14

Update to:

http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_8-3/ipj_8-3.pdf

jan-15

Tony Hain

jan-15

Day 2011-12-24 Last RIR depleted

http://www.lagerholm.com/~stephan/cgi-bin/ipv6/predict.cgi http://www.infoweapons.com/pdfs/When_Will_IPv4_Addresses_Run_Out_ver00_rev06.pdf BRKRST-2301 14340_04_2008_c2 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Public

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Monitoring Market Drivers
Address space depletion National IT Strategy
U.S. Federal Mandate IPv6 Task Force and promotion councils: Africa, India, Japan, Korea,… China Next Generation Internet (CNGI) project European Commission sponsored projects

IPv6 “on” & “preferred” by default Applications only running over IPv6 (P2P framework)

IP NGN DOCSIS 3.0, FTTH, HDTV, Quad Play Mobile SP – 3G, WiMax, PWLAN Networks in Motion Networked Sensors, ie: AIRS NAT Overlap – M&A

MSFT Vista & Server 2008
BRKRST-2301 14340_04_2008_c2 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Public

Infrastructure Evolution
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Why Not NAT
  It was created as a temp solution   NAT breaks the end-to-end model   Growth of NAT has slowed down growth of transparent applications   No easy way to maintain states of NAT in case of node failures   NAT break security   NAT complicates mergers, double NATing is needed for devices to communicate with each other

BRKRST-2301 14340_04_2008_c2

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Public

7

Operating System Support

  Every major OS supports IPv6 today   Top-to-bottom TCP/IP stack re-design   IPv6 is on by default and preferred over IPv4 (considering network/DNS/application support)   Tunnels will be used before IPv4 if required by IPv6-enabled application ISATAP, Teredo, 6to4, Configured

  All applications and services that ship with Vista/Server 2008 support IPv4 and IPv6 (IPv6-only is supported) Active Directory, IIS, File/Print/Fax, WINS/DNS/DHCP/LDAP, Windows Media Services, Terminal Services, Network Access Services – Remote Access (VPN/Dial-up), Network Access Protection (NAP), Windows Deployment Service, Certificate Services, SharePoint services, Network Load-Balancing, Internet Authentication Server, Server Clustering, etc…

  http://www.microsoft.com/technet/network/ipv6/default.mspx

BRKRST-2301 14340_04_2008_c2

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Public

8

Header
( General Concepts )

BRKRST-2301...
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