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Millions of Internet Addresses Are Lying Idle
An anonymous reader writes "The most comprehensive scan of the entire internet for several decades shows that millions of allocated addresses simply aren't being used. Professor John Heidemann from the University of Southern California (USC) used ICMP and TCP to scan the internet. Even though the last IPv4 addresses will be handed out in a couple of years, his survey reveals that many of the addresses allocated to big companies and institutions are lying idle. Heidemann says: 'People are very concerned that the IPv4 address space is very close to being exhausted. Our data suggests that maybe there are better things we should be doing in managing the IPv4 address space.' So, is it time to reclaim those unused addresses before the IPv6 crunch?"
lets just switch to IPv6, it's more functional and future proof
This is curiously similar to the current credit crunch. When a fix is not guaranteed to happen soon, people start hoarding.
Perhaps some of the institutions that still have class A networks reserved from the old days, with no reasonable need for them, should give them back.
UNIX/Linux Consulting
you can give one of these poor unwanted IP's a home.
"I bless every day that I continue to live, for every day is pure profit."
Would giving them back do anything other than encourage network providers to procrastinate on IPv6 for another couple years?
People setting up networks aren't trying to use every single address in their space.
It's far easier to use an entire a.b.c.* as a logical sub-domain than fiddling with netmasks and all that stuff so that a.b.c.1 and a.b.c.200 are on different subnets.
The amount of work people would need to invest to use every single IP address with no holes would be cumbersome. (I'm not saying you can't do it, it's just tedious.) And, you never know when you're going to need to allocate more machines -- I remember getting blocks of IP addresses for static machines in case I needed another machine in the future.
Now, why most people aren't using 10.*.*.* as their internal stuff I'll never know. Since the overwhelming majority of machines on the internet aren't (and shouldn't) be directly routable, it's an awful waste to not have organizations behind NAT-ed firewalls and not drawing from the common pool of route-able IP addresses.
Cheers
Lost at C:>. Found at C.
We get this all the time from our ISP's. "Our scans reveal that you're not using much of the space we've allocated to you." In reality, those IP's are behind firewalls that only permit certain customers to reach them. Otherwise they don't respond - even to pings. The IP's appear dead to everyone except authorized users, and our ISP's aren't authorized.
I drop ICMP entirely, and besides our website and mailservers, we don't have any standard tcp ports open on any of our other external IPs. I really can't imagine it's that much different for other medium and large businesses; am I to believe they nmapped the entire Internet? (It's clear FTA that they did not) To me, these findings are not that surprising in the security-oriented world we live in today.
In addition to all those lying idle because of excessive address space allocation, there are huge swaths of space which have been hijacked. Recent discussion on the NANOG list has highlighted some of these; the Spamhaus DROP list features others. And other researchers have found still more that are obviously no longer under the control of their putative owners, and are being use for spam, spyware, phishing, and worse. Attempts to get network operators, registrars, ICANN, ARIN, and others to effectively disable these resources -- and eventually to reclaim them -- have been largely unsuccessful. Yes, in some isolated cases, limited action eventualy takes place, but it's far too little far too late to be considered anything close to "effective". We need a concerted, worldwide effort to not only reclaim this space, but to blacklist for life those found currently possessing that -- because (as we've seen repeatedly) they won't be deterred by anything else.
http://www.grammarmudge.cityslide.com/articles/article/992333/8992.htm
http://www.askoxford.com/betterwriting/classicerrors/grammartips/lyingandlaying
If you are in the process of putting something down, you are laying it down, but that object once it is there, it is lying. The verb lay has a direct object that the action is performed on. He is laying the book credenza. She is laying her purse on the counter. Once it has been laid, it is now lying. The book is lying on the credenza. The purse is lying on the counter. IP addresses are lying unused.
http://en.wikipedia.org/wiki/Laying
I read Slashdot for the headlines, because the headlines, unlike the articles, are usually original and never duplicated
From the article:
The USC research group used the most innocuous type of network packet to probe the farthest reaches of the Internet. Known as the Internet Control Message Protocol, or ICMP, this packet is typically used to send error messages between servers and other network hardware.
My home network is in complete stealth mode, and to them that's another "idle IP" address.
I also love how they arrived to their conclusion:
the team probed a million random Internet addresses using both ICMP and TCP, finding a total of 54,297 active hosts ... ...
In total, the researchers estimate that there are 112 million responsive addresses
but the overall conclusion--that the Internet has room to grow--is spot on
How did this ghetto-science experiment end up on Slashdot again?
If you can't mod them join them.
the IT hysteria of the early century. just as juicy a media hit as the Y2K panic and fear from last century, but not as much consulting opportunities
personally i'm waiting for 2012, when the elder gods of the mayan calendar awaken and in their rage at not being greeted by chocolate, peppers, and virgins, they reroute all null pointers in all code to the apocalypse. plenty of IT hysteria, plenty of consulting opportunities
intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
The most comprehensive scan of the entire internet for several decades
As opposed to the great Internet scans of the 30s?
lets just switch to IPv6, it's more functional and future proof
Yup and it is probably much simpler. Trying to reclaim addresses involves political issues, finding out who to talk to, bureaucracy and some technical issues. Switching to IPv6 is about technical stuff and just getting going. You are going to have to switch to IPv6 at some point, so why spend energy twice?
Jumpstart the tartan drive.
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