IS 8040 PROJECT I

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IS 8040 PROJECT I

• IPv4 vs. IPv6
• By
• Altug Ozdamar

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INTRODUCTION

• TCP/IP standard is the most commonly used
  networking protocol all over the world.
• This presentation will give you an idea about the
  new IPv6 and the outcome of this new protocol.

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IPv4

• Combines the segment and node portions of the
  network layer into a single hierarchical IP
  address.
• 32bits long, represented as a sequence of four
  octets.
• Octets are decimal representations of eight bit
  section of the address

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IPv4

• IPv4 Packet Layout

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IPv4 Example

• 01101110 11101010 00001001 11001010
• 110 234 9 202
• 110.234.9.202

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IPv4 Address Classes

• Class A- 255.0.0.0
• Class B- 255.255.0.0
• Class C- 255.255.255.0

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Subnet Mask

• The first X bits of an IP address represent the
  segment address and the remaining (32-X) bits
  represent the node address.
• Helps defining nodes and their places.
• Defining segments helps routers to distinguish
  one destination network from another

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Subnet Mask Cont.

• 255.255.0.0
• 11111111 00000000
• Subnets254 Nodes254
• 11111110 00000000
• Subnets128 Nodes512

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Problems with IPv4

• Multicasting
• Class of Service
• Security
• Not enough IP addresses

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IPv6

• The new trend for the Internet protocol.
• Designed by the Internet Engineering Task Force.
• 128-bit addressing.
• Similar to Mac Addressing.

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IPv6 Packet

• Packet Layout

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Example IPv6

• Example of an IPv6 Address
• FF0E00A0B9023
• Example of an IPv6 Subnet Mask
• FFFFFFFFFFFF000

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Advantages of IPv6

• Capability of assigning more addresses than the
  current population of the world.
• Improved management- Devices detect their LAN
  router and negotiate for an address
• Utilizes Fixed Length field headers

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Disadvantages

• Service disruption
• Performance degradation
• Longer provisioning times
• Most applications do not support IPv6
• Not enough hardware

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Conclusion

• The internet is still using IPv4 instead of IPv6,
  however the IPv4 has been around for a long time
  (it was adopted in 1981) and is showing its age.
• IPv6 is more than a need for the network users
  and managers.

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Conclusion(cont.)

• The advantages it brings to our life are more
  important than the disadvantages it carries with.
• Currently there are no other solutions to the
  problems of IPv4. Thus, IPv6 should be
  implemented and supported faster.

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References

• James E.Goldman.2000. Local Area Networks. John
  WileySons,Inc.
• http//www.Itworld.com
• http//www.whatis.com
• http//www.InfoWorld.com