The future of the Internet will lie with IPv6. We can all agree it is here, but

Question

The future of the Internet will lie with IPv6. We can all agree it is here, but usage seems to be very low. Why do you think that is and do you think it will increase anytime in the near future? Research the components of the protocol and compare the various TCP/IPv6 layers with the OSI model. The report should also include a section discussing additional functions or components that would be beneficial in IPv6. It might also be useful to compare and contrast IPV4 to IPV6. Your write-up should be 3-5 pages in length.

Explanation / Answer

comparision of tcp/ip with osi model:

1.osi is a generic protocol independent standard acting as communication gateway between network and end user.

2.osi model ,the transport layer guarantees the delivery of packets.

3. follows vwrtical approach.

4.osi has seperate presentation layer and session layer.

5.osi referrence model around which the networks are built.

6.osi has both connection oriented and connectionless networks.

7. problem of fitting the protocols in the model.

8.osi model replaced as the technology changes.

9.protocol independent.

10.it has & layers

TCP/IP(Transmission protocol/Internet Protocol)

1.Tcp/ip model is based on standard protocols around which the internet allows connection of hosts over a network.

2.Tcp/Ip transport layer does not guarantes delivery of packets.

3.horizontal approach.

4.Tcp/ip does not have presentation and session layer.

5.Tcp/ip is a implementation of osi model.

6.only connectionless

7.does not fit any protocol.

8.replacing the protocols is not easy

9.protocol dependent.

10.5 layers

IPv4 and IPv6:

IPv4 is 32 bit and four 1 byte decimal number format

IPv6 is 128 bit and hexa decimal number format

Benefits of IPv6:

1.No more NAT(network address translation)

2.Auto-configuration.

3.no more private address translation.

4.better multicast routing.

5.single header format.

6.simplified,more efficient routing.

7.true quality of service also called flow labellimg.

8.built in authentication and privacy support

9.flexible options

10.easier administration.

Main advantages of IPv6 over IPv4:

1.Ipv6 simplified the routers task compred to ipv4

2.ipv6 more compatible to mobile networks than ipv4

3.ipv6 allows for bigger payloads than what is allowed in ipv4

4.ipv6 is used by less than 1% of the networks while ipv4 is still in use by the remaining 99%

5.ipv6 has security(Encrytion and Decryption).

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