On 14-apr-2007, at 12:16, Alexander Harrowell wrote:
[net 25/8]
Ah. I think you'll find this is a result of there being some legacy
stuff from before the UK NIC, Nominet, was set up in 1996. Before
then, the de facto authority was the academics, JANET, working out
of the University of London Computer Centre. Hence cs.ucl.ac.uk
getting in there.
Ok, I wasn't clear: the problem here is that both ARIN and RIPE claim
net 25.0.0.0/8 as "their own". This means that if you add up the
address space managed by all the RIRs, net 25 gets counted twice.
This is from the delegation information on their FTP servers:
# grep "|25\.0\.0\.0" delegated-*
delegated-arin-latest:arin|GB|ipv4|25.0.0.0|16777216|19850128|assigned
delegated-ripencc-latest:ripencc|GB|ipv4|25.0.0.0|16777216|19950101|
allocated
Is it just me or does all of this have the odor of amateur hour
around it? Inconsistencies between the various databases, IANA can't
make http://www.iana.org/assignments/ipv4-address-space such that
it's unambiguously parsable, ARIN backdates some of the address space
it gives out, RIPE used to register address space under "UK" while
that's not a valid country code (they fixed that last year, though),
and so on.
