[arin-ppml] "Millions of Internet Addresses Are Lying Idle" (slashdot)

bmanning at vacation.karoshi.com bmanning at vacation.karoshi.com
Sun Oct 19 11:51:04 EDT 2008



Johns analysis is based on the premise that nodes respond to an
ICMP echo request or the TCP equivalent.  That might temper ones
expectations or presumptions about allocated but fallow data.

--bill


On Sat, Oct 18, 2008 at 09:01:17PM +0000, Paul Vixie wrote:
> "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?"
> 
> http://tech.slashdot.org/article.pl?sid=08/10/15/1659244
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