?

Log in

No account? Create an account

Joke of the Day

« previous entry | next entry »
Feb. 1st, 2011 | 01:14 pm
mood: amusedamused

Joke of the Day™:

An IPv4 address walks into a bar and says, "a strong CIDR please, I'm exhausted".

(Apparently, APNIC just requested two more /8 from IANA, too, so the last five remaining ones will be distributed to the RIRs now, and that's the beginning of the end for IPv4. We sure live in interesting times.)

Link | Leave a comment | Share

Comments {4}

tzisorey

(no subject)

from: tzisorey
date: Feb. 1st, 2011 12:41 pm (UTC)
Link

Wow, so they both went to just the one place?

Reply | Thread

Schneelocke

(no subject)

from: schnee
date: Feb. 1st, 2011 08:22 pm (UTC)
Link

Yup — it was already clear this would happen, though.

Reply | Parent | Thread

cloverr

(no subject)

from: e_phemera
date: Feb. 1st, 2011 05:04 pm (UTC)
Link

Lol...don't bother explaining it to me, but I'm sure my computer nerd bf would get this joke... (and please don't tell the Dominant Master part of him I called him a nerd) :)

Reply | Thread

Schneelocke

(no subject)

from: schnee
date: Feb. 1st, 2011 08:31 pm (UTC)
Link

Ah, it's not so difficult to explain, actually! Basically:

  • Computers have historically always used and typically still use IP (version 4) addresses on the Internet.
  • These are managed by an organization called IANA that hands them out to various regional subsidiaries (so to speak), such as ARIN in North America, RIPE in Europe, APNIC in the Asian-Pacific reason and so on.
  • There's about 4 billion possible IPv4 addresses; a significant number are not usable for various reasons, quite a few more have historically been allocated to companies in large chunks (at a time when a public Internet like we have today was not envisioned), so 4 billion is actually much less than it may sound at first glance.
  • In fact, the last remaining blocks of about 80 million addresses (~16 million each) will now be handed out; it has been IANA policy for a while that as soon as there are only five of these chunks ("/8s") left, each of the five "subsidiary" that exist (see above; these are collectively called RIRs, BTW) will get one.
  • So in that sense, IPv4 addresses are exhausted (which is what the joke is based on: the IPv4 address there is literally exhausted when it walks into the bar!): there aren't any left that could go to the RIRs, and since the RIRs are responsible for handing them out to organizations and companies, those soon will not be able to get any new ones, either.
  • This was anticipated ages ago, and a new version of IP (the Internet Protocol), version 6, was created to deal with it. The transition didn't really happen yet, but it will have to sooner or later now.
  • The "CIDR" part is really just a pun on CIDR and cider.

See? Now you get the joke, and you got some background on the whole transition thing, too. :)

(And OK, I won't tell him. ^^)



Edited at 2011-02-01 08:32 pm (UTC)

Reply | Parent | Thread