Internet Protocol Version 6

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Internet Protocol Version 6

• By Nick Valencia

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Outline

• Introduction
• What is IPV6?
• Features and Differences from IPV4
• Packet Format and Addressing
• IPV6 Readiness
• IPV6 in use today

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IPV4

• In 1981 IPV4 was standardized.
• Used in almost every network today

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Why IPV6

• OMG!!!! The Internet is running out of space!
• In the1990s there was concern that we would run
  out of ipv4 addresses.

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• In 1998 IPV6 was officially named as the
  successor of IPV4.
• As of today IPV6 is still considered to be in its
  infancy.
• With the use of CIDR and NAT there has not been a
  big need for IPV6.

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What Happened to IPV5?

• In the late 1970s Internet Stream Protocol was
  created, also known as ST
• It was used for voice, video, and distributed
  simulation
• ST was used by IBM, NeXT, Apple, and Sun

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IPV4 vs. IPV6

• IPV4 has a 32 bit address
• IPV6 has a 128 bit address
• IPV4 has a maximum of 232
• IPV6 has a maximum of 2128

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Supported Systems

• Windows (XP and Vista)
• Mac OS X
• Most Linux Systems
• Most new routers and some old routers (only if
  the firmware supports it)

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Security

• IPV6 has IPsec (Internet Protocol Security)
• In IPV4 IPsec is an option
• This makes the packets less vulnerable to be
  hacked

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IPV6 Packet

• IPV6 is in the Network layer protocol

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3ffe 1900 4545 3 200 f8ff fe21 67cf
IPV6 Addresses
http//3ffe190045453200f8fffe2167cf80/in
dex.html
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Mac Address in IPV6
1. If the node (host or router) has a 48-bit MAC
interface identifier of 00010331AADD the
n the resulting 64-bit IPv6 interface ID will
be 020103fffe31aadd or, in shorthand
notation 2013fffe31aadd Note A 48-bit
MAC address must be expanded to a 64-bit address
for stateless autoconfiguration. To do so, the
value fffe is inserted between the third and
fourth bytes of the MAC address. Next, the second
low-order bit of the first byte of the MAC
address is complemented. In binary, our original
MAC address looks like this, after
expansion 00000000 00000001 00000011 ltfffe
goes heregt 00110001 10101010 11011101
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IPV6 Readiness

• Check your hardware
• Update your software and firmware
• Educate your end users
• Test before you go live
• As of Feb 2008 six of the thirteen root servers
  for dns are IPV6 ready

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IPV6 in use today

• The biggest deployment of IPV6