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I got bored playing with html forms today and what I ended up with is this nifty form that turns a given MAC address into a /48 IPv6 ULA prefix. The form POSTs this string to a cgi script which is essentially a quick re-write of the first Perl script I ever wrote (just added some html cruft to the STDOUT). I got the idea for the first script since I couldn't find a simple way to generate an ULA from my terminal. I had to open up a browser and find other similar web-based tools with a web search but several of these didn't seem to really follow the RFC, i.e. printing out a /64 instead of a /48 or printing out the prefix with no MAC address or even a field to give it one. Maybe some wayward network nerd standing up an IPv6 lab will find this useful :)
Limit of 1,208,925,819,614,629,174,706,176 ULA addresses per customer.
Management: How many feet do mice have? Reply: Mice have four feet. M: Elaborate! R: Mice have five appendages, and four of them are feet. M: No discussion of fifth appendage! R: Mice have five appendages; four of them are feet; one is a tail. M: What? Feet with no legs? R: Mice have four legs, four feet, and one tail per unit-mouse. M: Confusing -- is that a total of 9 appendages? R: Mice have four leg-foot assemblies and one tail assembly per body. M: Does not fully discuss the issue! R: Each mouse comes equipped with four legs and a tail. Each leg is equipped with a foot at the end opposite the body; the tail is not equipped with a foot. M: Descriptive? Yes. Forceful NO! R: Allotment of appendages for mice will be: Four foot-leg assemblies, one tail. Deviation from this policy is not permitted as it would constitute misapportionment of scarce appendage assets. M: Too authoritarian; stifles creativity! R: Mice have four feet; each foot is attached to a small leg joined integrally with the overall mouse structural sub-system. Also attached to the mouse sub-system is a thin tail, non-functional and ornamental in nature. M: Too verbose/scientific. Answer the question! R: Mice have four feet.

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