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Whatever happened to the IPv4 address crisis?

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Re: Whatever happened to the IPv4 address crisis?

#81

Post by trout »

Here's a report you can see the current projects with a bit of history: http://www.potaroo.net/tools/ipv4/index.html

The potaroo site by Geoff Huston has been running for over a decade tracking address consumption.

Some history for ARIN consumption predictions: Feb 2014 predicts Mar 2015.

Oct 2013 predicts Jan 2015 [0].

Apr 2013 predicts Apr 2014 [1].

Nov 2012 predicts Sept 2013 [2].

Sep 2012 - RIPE out of addresses.

Apr 2011 - APNIC out of addresses.

Feb 2011 - IANA out of addresses.

Dec 2011 predicts July 2013 [3].

July 2011 predicts Nov 2013 [4].

Prior to this it's simply about IANA calculations, though with some algebra some dates could be extracted.

As well, here's a Cisco article from 2005 describing some of the painful parts of trying to predict the address consumption (where they guess 2016 in 2005): http://www.cisco.com/web/about/ac123/ac147/archived_issues/i...

[0] http://web.archive.org/web/20111227105916/http://www.potaroo... [1] http://web.archive.org/web/20111227105916/http://www.potaroo... [2] http://web.archive.org/web/20121122120407/http://www.potaroo... [3] http://web.archive.org/web/20111227105916/http://www.potaroo... [4] http://web.archive.org/web/20110709090704/http://www.potaroo...

Re: Whatever happened to the IPv4 address crisis?

#82

Post by danielweber »

gpvos wrote: post #50
danielweber wrote: post #26

Earlier quoted context omitted.

You act like Wikipedia has no agency in this matter and is simply forced to block Qatar's IP address from editing. Wikipedia has choices, and it's choosing something well within its rights to prevent abuse of its property, but they could choose to do something different.

I am curious. Which other criterion than IP address could they use to prevent anonymous users from Qatar from vandalizing? (I guess one method could be to force everyone from this IP address to create an account, but that goes against their openness/ease-of-editing-for-new-or-casual-users principle.)

I mostly object to the phrasing that Wikipedia is "forced" to block all of Qatar, as if Wikipedia is a mindless force of nature or not in control of its own actions.

Re: Whatever happened to the IPv4 address crisis?

#83

Post by vklj »

FedRegister wrote: post #47
js2 wrote: post #33

http://cr.yp.to/djbdns/ipv6mess.html (circa 2003)

That was always a question I had in the back of my mind. We have this huge address space. Why not reserve a single prefix that means "look at the lower 32-bits of this address and use it as an IPv4 address"?

Every IPv4 packet needs a source address. If the client is IPv6, what is the IPv4 source address?

You would want to assign an IPv4 address to the client transparently; and, since they're scarce, share it with several clients. That's what NAT64 does.

Re: Whatever happened to the IPv4 address crisis?

#84

Post by giovannibajo1 »

FedRegister wrote: post #47
js2 wrote: post #33

http://cr.yp.to/djbdns/ipv6mess.html (circa 2003)

That was always a question I had in the back of my mind. We have this huge address space. Why not reserve a single prefix that means "look at the lower 32-bits of this address and use it as an IPv4 address"?

That covers ipv6 hosts sending a packet to ipv4 hosts. How do you propose they answer though? They can't put a ipv6 address in the ipv4 header.

The full solution is NAT64.

Re: Whatever happened to the IPv4 address crisis?

#85

Post by lflux »

kordless wrote: post #52
chimeracoder wrote: post #6

This article is focused on the US, a country which was never really going to feel the brunt of the IPv4 crunch. For an example of a real victim, look at Qatar, a country which only has a single IP address for the entire country (everyone sits behind a NAT): https://en.wikinews.org/wiki/Qatari_proxy_IP_address_tempora... [0] Whenever someone from Qatar decides to vandalize Wikipedia, Wikipedia is forced (temporarily)…

I can assure you the US is feeling the brunt of the IPv4 crunch. I'm building something that needs massive amounts of public address space and I simply can't get IPv4 addresses for it. I've asked multiple providers. You are LUCKY if you can get a /28 at this point. Hoarding. Rolling with IPv6 instead. I get you have an interest in the Qatar/Wikipedia situation, but it seems to be unlikely due to IP address resource m…

I had absolutely no problem getting a /27 from my ISP here in Sweden the other week.

Re: Whatever happened to the IPv4 address crisis?

#86

Post by lflux »

spindritf wrote: post #8

It's here. IP addresses are costing more and providers are less generous with them. It used to be common to get a handful with a dedicated server, now you get one or two. I have a friend who runs a small low-cost minecraft hosting. He stopped giving his customers dedicated IPs at all. They get a range of ports and a hostname with appropriate srv records added. That's the other result, technical work-arounds. You can…

Unfortunately if you have customers using IE on XP or older Android phones, SNI doesn't work and you need to use SAN certificates. EV-certificates with SAN is another huge amount of hassle I wish on nobody.

Re: Whatever happened to the IPv4 address crisis?

#87

Post by lmm »

gtirloni wrote: post #44
js2 wrote: post #33

http://cr.yp.to/djbdns/ipv6mess.html (circa 2003)

Thanks, very interesting read. While reading his argument about all the extensions that need to be done everywhere, I thought about this: since many protocols/etc have to be reworked, will that lead to consolidations (since some protocols will be left behind)? Can we say that currently the IPv6 Internet is a place (almost) free of legacy stuff?

I'm hoping the opposite, that people upgrading their routers to forward more than just IPv4 packets might mean we can finally start using SCTP in the real world. (It won't happen, of course, but one can dream)

Re: Whatever happened to the IPv4 address crisis?

#88

Post by pbhjpbhj »

kordless wrote: post #52
chimeracoder wrote: post #6

This article is focused on the US, a country which was never really going to feel the brunt of the IPv4 crunch. For an example of a real victim, look at Qatar, a country which only has a single IP address for the entire country (everyone sits behind a NAT): https://en.wikinews.org/wiki/Qatari_proxy_IP_address_tempora... [0] Whenever someone from Qatar decides to vandalize Wikipedia, Wikipedia is forced (temporarily)…

I can assure you the US is feeling the brunt of the IPv4 crunch. I'm building something that needs massive amounts of public address space and I simply can't get IPv4 addresses for it. I've asked multiple providers. You are LUCKY if you can get a /28 at this point. Hoarding. Rolling with IPv6 instead. I get you have an interest in the Qatar/Wikipedia situation, but it seems to be unlikely due to IP address resource m…

>I'm building something that needs massive amounts of public address space //

You piqued my interest, what?

Re: Whatever happened to the IPv4 address crisis?

#89

Post by icedchai »

kordless wrote: post #52
chimeracoder wrote: post #6

This article is focused on the US, a country which was never really going to feel the brunt of the IPv4 crunch. For an example of a real victim, look at Qatar, a country which only has a single IP address for the entire country (everyone sits behind a NAT): https://en.wikinews.org/wiki/Qatari_proxy_IP_address_tempora... [0] Whenever someone from Qatar decides to vandalize Wikipedia, Wikipedia is forced (temporarily)…

I can assure you the US is feeling the brunt of the IPv4 crunch. I'm building something that needs massive amounts of public address space and I simply can't get IPv4 addresses for it. I've asked multiple providers. You are LUCKY if you can get a /28 at this point. Hoarding. Rolling with IPv6 instead. I get you have an interest in the Qatar/Wikipedia situation, but it seems to be unlikely due to IP address resource m…

Then there are guys like me. I have a /24 routed to my home (pre-ARIN legacy space registered in the early 90's!)

Re: Whatever happened to the IPv4 address crisis?

#90

Post by Buge »

alexandros wrote: post #32
Buge wrote: post #27

Earlier quoted context omitted.

Those can all be changed. A determined spammer could make a bot that automatically changes them.

Whereas an IP can't be trivially masked?

Most free proxies are already blocked on wikipedia. Finding more once yours have been block I don't think is very easy.

Browser configurations can be easily generated by a computer and you never run out.

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