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swagg boi's (RFC 4193 compliant) IPv6 ULA prefix spitter-outter!!

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.

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The Least Perceptive Literary Critic
	The most important critic in our field of study is Lord Halifax.  A
most individual judge of poetry, he once invited Alexander Pope round to
give a public reading of his latest poem.
	Pope, the leading poet of his day, was greatly surprised when Lord
Halifax stopped him four or five times and said, "I beg your pardon, Mr.
Pope, but there is something in that passage that does not quite please me."
	Pope was rendered speechless, as this fine critic suggested sizeable
and unwise emendations to his latest masterpiece.  "Be so good as to mark
the place and consider at your leisure.  I'm sure you can give it a better
turn."
	After the reading, a good friend of Lord Halifax, a certain Dr.
Garth, took the stunned Pope to one side.  "There is no need to touch the
lines," he said.  "All you need do is leave them just as they are, call on
Lord Halifax two or three months hence, thank him for his kind observation
on those passages, and then read them to him as altered.  I have known him
much longer than you have, and will be answerable for the event."
	Pope took his advice, called on Lord Halifax and read the poem
exactly as it was before.  His unique critical faculties had lost none of
their edge.  "Ay", he commented, "now they are perfectly right.  Nothing can
be better."
		-- Stephen Pile, "The Book of Heroic Failures"
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It's UNIX baby, yeah!

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