N3PB Legacy IP Caution Stickers

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The Stickers

You may have run across these Legacy IP Only caution stickers at some event. I designed them in 2013 and printed 1,000 sheets of two and sent them off to assorted IPv6 folks I knew from various mailing lists. All of the artwork is available and several other people printed their own as well. They have been handed out at a lot of conferences and related events.


The Idea

Here is where the idea was hatched. In April of 2012, RFC 6540: IPv6 Support Required for All IP-Capable Nodes was released. As of 2023, it is in the category of Best Current Practices as BCP 177. I first learned about it in the tweet pictured. I immediately had the idea that a caution sticker was appropriate. I'd occasionally think about this over the next 14 months, but I finally designed the sticker in June of 2013.

2013 Printing

I ordered the first batch of 1,000 3.5in x 2in (double) stickers from PsPrint 2013-06-06. (I don't remember if that date was an accident or inspired by -06-06 activities.)

2023 Printing

A decade after printing the first batch of stickers and the publication of RFC 6540, twenty-eight years after RFC 1883, and twenty-five years after enabling production IPv6 at work these are still in demand. I handed the last of the 2013 batch to a friend who was going to FOSDEM in January of 2023.


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