Differences IPv4 Vs IPv6

52 Comments
Differences IPv4 Vs IPv6

I had compiled differences between IPv6 and IPv4 long back. Though it is for my personal reference I am uploading it on my blog. Hope someone might find this useful.

Thanks to those known and known sources who helped me compile this.
IPv4
IPv6
Addresses are 32 bits (4 bytes) in length. Addresses are 128 bits (16 bytes) in length
Address (A) resource records in DNS to map hostnames to IPv4 addresses. Address (AAAA) resource records in DNS to map hostnames to IPv6 addresses.
Pointer (PTR) resource records in the IN-ADDR.ARPA DNS domain to map IPv4 addresses to hostnames. Pointer (PTR) resource records in the IP6.ARPA DNS domain to map IPv6 addresses to hostnames.
IPSec is optional and should be supported externally IPSec support is not optional
Header does not identify packet flow for QoS handling by routers The header contains the Flow Label field, which Identifies packet flow for QoS handling by the router.
Both routers and the sending host fragment packets. Routers do not support packet fragmentation. Sending host fragments packets
The header includes a checksum. The header does not include a checksum.
The header includes options. Optional data is supported as extension headers.
ARP uses broadcast ARP requests to resolve IP to MAC/Hardware address. Multicast Neighbor Solicitation messages resolve IP addresses to MAC addresses.
Internet Group Management Protocol (IGMP) manages membership in local subnet groups. Multicast Listener Discovery (MLD) messages manage membership in local subnet groups.
Broadcast addresses are used to send traffic to all nodes on a subnet. IPv6 uses a link-local scope all-nodes multicast address.
Configured either manually or through DHCP. Does not require manual configuration or DHCP.
Must support a 576-byte packet size (possibly fragmented). Must support a 1280-byte packet size (without fragmentation).

Network Sorcery is a great place to find RFC(s).
Refer to http://www.networksorcery.com/enp/protocol/ipv6.htm and http://www.networksorcery.com/enp/protocol/ip.htm links for related RFC(s) of IPv6 and IPv4 respectively.

 Also, there is a good reference for Understanding IPv6 @ http://technet.microsoft.com/en-us/library/cc786127.aspx

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Mandar is a seasoned software professional for more than a decade. He is Cloud, AI, IoT, Blockchain and Fintech enthusiast. He writes to benefit others from his experiences. His overall goal is to help people learn about the Cloud, AI, IoT, Blockchain and Fintech and the effects they will have economically and socially in the future.

52 comments:

  1. UnknownOctober 15, 2009 at 5:24 PM

    thank you

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  2. UnknownOctober 20, 2009 at 11:36 AM

    Nice comparision i m wasim from pakistan

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  3. UnknownDecember 3, 2009 at 11:08 AM

    thank u...........such a nice comparision..

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  4. UnknownMarch 8, 2010 at 12:20 AM

    Thanks. This is very useful.

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  5. UnknownMarch 11, 2010 at 4:44 PM

    THANK U BUT GIVE MORE INFO

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  6. Mishara NickApril 21, 2010 at 9:12 AM

    Tx. more info is highly appreciated. hw ever very helpful.

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  7. UnknownMay 9, 2010 at 3:01 AM

    this is very good ....but i need the diff between RMI AND RFC

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  8. leninJune 13, 2010 at 5:07 PM

    thnx.very useful for me thnx once again.pls give some vlan concept question from lenin chennai

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  9. UnknownJune 22, 2010 at 8:07 AM

    Good-quick reference. Thanks

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  10. UnknownJuly 26, 2010 at 11:36 AM

    hey its a nice reference. Thanks

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  11. hariAugust 2, 2010 at 9:30 PM

    really helped me for my quiz thanks a lot

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  12. UnknownSeptember 20, 2010 at 12:32 PM

    thanx really very nice

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  13. UnknownOctober 3, 2010 at 12:40 PM

    thanx sir...........divesh agrahari

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  14. UnknownOctober 14, 2010 at 11:54 PM

    ya its really good and very helpful thank you so much ...:)

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  15. UnknownNovember 6, 2010 at 2:23 PM

    it was of great help.. thank yu..

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  16. UnknownJanuary 25, 2011 at 10:05 PM

    i suggest to keep in touch with an ipv4 to ipv6 discussion forum since it often gets full of expertise and good answers

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  17. UnknownJanuary 31, 2011 at 6:57 AM

    hello great...

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  18. UnknownFebruary 4, 2011 at 8:23 AM

    hey thanx for giving this ....

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  19. rajat chaturvediMarch 29, 2011 at 1:51 PM

    well can u tell me which is best ipv6 or ipv4

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  20. UnknownMay 14, 2011 at 2:14 PM

    thanks d(^_^)b

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  21. vihari royMay 22, 2011 at 5:37 PM

    gud 1 thanx...........

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  22. ajithAugust 20, 2011 at 11:45 AM

    tank you sir I ajith from kerala

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  23. shradSeptember 5, 2011 at 6:58 PM

    there's one mistake in first point....it shud b 6 bytes..

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  24. AnonymousNovember 25, 2011 at 9:40 PM

    Thanks:) Really useful one.. Good job..

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  25. AnonymousDecember 1, 2011 at 11:35 AM

    This is really nice..
    Thankz alot :)

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  26. satyamDecember 4, 2011 at 5:52 PM

    I like your Blog.
    satyam from india

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  27. sathishvasikaranDecember 12, 2011 at 1:17 PM

    thanks sir & I like your blog

    ReplyDelete
  28. carlosgimelDecember 13, 2011 at 6:08 AM

    image only:
    https://docs.google.com/document/d/1IN43WKZQbETdkGLvdDSTCrMMk4F3Xb4LJqUcCoMMsAU/edit

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  29. MyLinuxGeekDecember 17, 2011 at 12:43 PM

    Very helpful. Thanks so much

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  30. IMRAN KHANJanuary 16, 2012 at 2:26 PM

    thanx and i like ur blog

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  31. NidaMarch 20, 2012 at 1:29 AM

    Ohhh really hlpful...thnxx

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  32. AkashMarch 27, 2012 at 12:07 PM

    thanx..

    ReplyDelete
  33. PreetiApril 2, 2012 at 7:37 AM

    Thanx for u r blogs... jus referred u r blogs instead of books during exams...

    ReplyDelete
  34. AbhishekApril 10, 2012 at 3:06 PM

    This comment has been removed by the author.

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  35. AbhishekApril 10, 2012 at 3:07 PM

    Thanx

    ReplyDelete
  36. UnknownApril 16, 2012 at 12:30 AM

    Thanks for helpin fo my cn 2 xam..

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  37. SaLeMMay 4, 2012 at 3:41 PM

    many thanks.. just pop to me in google when i search for ipv4 vs ipv6 which is what i need to know..
    useful table

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  38. sadhikMay 7, 2012 at 12:04 PM

    Very nice

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  39. hemanth kumarJune 4, 2012 at 2:28 PM

    i need difference between ip4 &ip5

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  40. shereena.sAugust 16, 2012 at 8:26 PM

    i need difference between ipv4 nd ipv6

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  41. UnknownNovember 18, 2012 at 2:26 PM

    thanx

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  42. selladuraiNovember 20, 2012 at 11:01 AM

    very nice and thanks..

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  43. UnknownDecember 12, 2012 at 6:53 PM

    nice different

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  44. ShorbojeetFebruary 12, 2013 at 7:21 AM

    Thank you, you are a life-saver. Required this for my assignment.

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  45. Mandar PiseFebruary 13, 2013 at 12:59 PM

    I have been receiving abusive comments.
    Considering nature of the content it is quite possible that there are few new improvements or additions over period of time (this article is from year 2009), please consider adding to the contents even it means pointing out few mistakes or new additions. Posting abusive comments neither does justice to the contents of this post nor to me as an author.

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  46. shashankMarch 5, 2013 at 9:44 PM

    thnx not getting this in any other tutorials.
    thnx fr giving detail & point to point difference..

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  47. UnknownApril 5, 2013 at 10:00 PM

    beautiful comparison thanks a lot

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  48. UnknownApril 5, 2013 at 10:02 PM

    beautiful comparison between ipv4 and ipv6 great job

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  49. UnknownMay 22, 2013 at 9:27 AM

    realy great

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  50. UnknownMay 24, 2013 at 7:03 AM

    Thanks a lot. This really helped me with my TCP/IP class unit on IPv6.

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  51. dMay 21, 2014 at 11:04 AM

    Thanks a lot nice answer

    ReplyDelete

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