I was surfing the Internet in search of some good drawing representing packet header and I come across five excellent diagrams large enough ( 1050px wide ) to use digital but also for printing. The person behind these excellent drawings is Matt Baxter, but his site (fatpipe.org) is not accessible anymore. I found these documents on the Internet and I thought to add them here together.

You will find a link at the bottom of this post where you can download them all together.

Disclaimer: These drawings are not mine and I don’t claim any rights on them. My thanks and all copyrights go to Matt Baxter.
Matt, if you come across this blog and you find sharing to be inappropriate, please contact me.

IPv4 Header

IPv6 Header

TCP Header

UDP Header

ICMP Header

Download all drawings here:


Packet header graphic representation
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3 thoughts on “Packet header graphic representation

  • March 19, 2013 at 19:39

    woaw. wonderful rapresentation THX ;)

    • March 19, 2013 at 21:15

      Thanks for comment! I’m glad you like them.

      Please point all your good thoughts toward Matt Baxter as he’s the one doing all the hard work, as explained in the text above.

  • June 15, 2016 at 09:24

    Really wish Matt kept that info up. His drawings are all over the Internet but I don’t know if it’s the whole collection. BTW, Calin, below the Matt’s drawings, it says to “Download all drawings here:” but I don’t see a link to download them. Were there more drawings that got removed? If so, can you put them back up? I’d like to see what the rest of the drawings look like. Thanks!


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