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February 3, 2008

Loong RTTs

srikanth @ 10:15 am, GMT +0000 ( 1202033756 ) Play

This is a chronologically ordered series of pictures capturing the steps involved in something. What is being implemented here?

Forward path

c73ed056626fbd9f443c678929e4009e.jpg

40bd77ecd91109c3a0cfa5ef54866175.jpg

36c0628865939658abb3839ad264d522.jpg

ce045fa1a0a07e6989eb82a235fd31c7.jpg

Return path:

2c5ae90dbf9ef674f94c24ff49927440.jpg

2ce594d0b77b58446b2947a30a13c5e1.jpg

0454425191cabf94268bd3c89a89d2e6.jpg

Cracked by:madhur , jayanth , udupendra , Dibyo , prasanth , Rahul Ranade , shashank , sumanth , yaksha and duriel.

Answer: Fairly obvious, innit. This is an implementation of the April Fool’s RFC 1149 (IP Over Avian Carriers). Some jobless hackers got together and ran a ping command with pigeons as the PHY layer.


13 Responses to “Loong RTTs”

  1. sidsen
    2

    pgp


  2. madhur
    1

    Demonstration of CPIP

    On 28 April 2001, the Bergen Linux User’s Group successfully demonstrated CPIP (Carrier Pigeon IP) between two Linux machines running on opposite sides of a small mountain in Bergen, Norway. Their network stack used printers to hex-dump packets onto paper, pigeons to transport the paper, and OCR software to read the dumps at the other end and feed them to the receiving machine’s network layer.


  3. rfc 1149 : A Standard for the Transmission of IP Datagrams on Avian Carriers.

    the guys in the pic above implementing a ping command using rfc 1149.

    the network provided speeds upto 0.08bps..

    nice question!


  4. udupendra
    4
    4
    7

    IPoAC – nice question :)


  5. Dibyo
    11
    14
    10

    The IP over Avian Carriers protocol, which was initially described in RFC 1149, etc.

    This is the world’s first implementation of the protocol.


  6. anonymous

    its the old way of communication by the use of pigeons


  7. Carrier pigeon Internet protocol – CPIP a.k.a P(igeon)mail

    by the Norwegian BLUG

    speed: 0.15bps

    this proves that cavemen did have internet :D


  8. Rahul Ranade

    RFC 1149


  9. duriel
    1
    1
    2

    In 2001 a group of Linux enthusiasts in Bergen, Norway, succeeded in exchanging some data using the Carrier Pigeon Internet Protocol (CPIP).

    This sequence depicts PING using pigeons. Message is typed, printed, sent over pigeons. A return “datagram” is attached to the pigeon and sent back.


  10. IP over pigeon!
    ( More specifically, The April fool RFC 1149 – A Standard for the Transmission of IP Datagrams on Avian Carriers )

    That was a great question!!


  11. nishansolo

    Pigeon Mail’n’Fax Download


  12. sumanth

    CPIP(Carrier Pigeon IP).


  13. yaksha
    1
    3

    Carrier Pigeon IP


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