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Re: 2008.02.20 NANOG 42 IPv4 PTR queries for unallocated space

  • From: Iljitsch van Beijnum
  • Date: Thu Feb 21 04:55:24 2008

On 20 feb 2008, at 20:27, <[email protected]> <[email protected]> wrote:

2/8, 1/8, 23/8, 5/8, 100/8 is there at #5, which is odd.

Odd? It's a round number which probably means that more
than one person has picked it when they needed to make
up an IP address.

It would be interesting to know how much of this space is really used for something more or less permanent, and how much is just random noise. For instance, I do a training course where people need to configure routers, and I use addresses out of for that, because it has to be clear that we're talking about real addresses and not RFC 1918 stuff. Although this doesn't interact with the real internet, often, people end up having real addresses and also addresses on their laptops so they probably generate some DNS queries for the 96 range.

Would it be useful for IANA to publish the order in which they're going to allocate /8s? That way, it's easier for people to plan getting out of the way of real deployment in time.