Re: [address-policy-wg] Millions of Internet Addresses Are Lying Idle

["Jeffrey A. Williams" jwkckid1@localhost]

Michael and all,

  Good point.  My question is, isn't this something that should be
addressed more fully by ICANN in terms of policy rather than
the RIR's independantly?  Just a thought...

michael.dillon@localhost wrote:

> > ... has anybody got a link to the actual paper?  Based on the
> > press reports, the methodology seems flawed, and the claims
> > about unprecedented scope look bogus.
>
> The methodology is very flawed because it does not account
> for private internetworks, which do not exchange traffic
> with the Internet. Also, although they took some precautions
> to reduce the loss of their probe packets, there are still
> some things like ICMP blocking, which make large chunks of
> address space completely invisible to them.
>
> You can read their paper at
> <http://www.isi.edu/~johnh/PAPERS/Heidemann08c.pdf>
>
> It is interesting work from a technical standpoint, but from
> a policy standpoint, it is not terribly useful since it is
> intended to measure the public Internet, not the approved usage
> of the IPv4 address space. Remember, we approve the use of
> IPv4 addresses that are not assigned to hosts. For instance,
> a company can assign a /29 to a subnet with 5 hosts, and their
> LIR will count all 8 addresses as being in use, in conformance
> with RIPE policy.
>
> --Michael Dillon

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