New IPv4 Allocation to ARIN

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1

>
> > There are still numerous networks blocking 69/8. Probably more blocking
> > 70/8 as most of the people who were behind the times with their filters
> > blocking 69/8 fixed that /8 but still don't keep their filters up to date.
...
Or, perhaps IANA could even do this before assigning an IP block to an
RIR.

Of course, if they tried to run the test *before* assigning the
block, it should fail, because it should still be in everyone's
bogon filters. :slight_smile:

So, the test has to happen *after* the assignment has been
made and announced, so that people have time to update
their bogon filters. It would also require that the RIR
to whom the block has been assigned arrange with their
upstream to have the test block routed; perhaps they could
use the top block from the new assignment for the test
subnet, and then begin assigning from the bottom; hopefully
by the time any substantial portion of the space has been
allocated, the need for the test subnet will have passed,
and the block can be used as part of the normal allocation
and assigned as appropriate (would kinda suck to be given
the last assignment from the block, only to be told that
"sorry, your last /24 is actually routed by the RIR, so
you come up 1 /24 short of what you expected. :wink:

Just some random thoughts on the matter--but it *does*
sound like a good idea.

Matt

2

Been there, done that. APNIC gave 223/8 back because there was
an issue with 223.255.255.0/24 being listed as IANA-Reserved.

3

Of course, if they tried to run the test *before* assigning the
block, it should fail, because it should still be in everyone's
bogon filters. :slight_smile:

So before assigning a block, mark it as "Pending assignment" or "Assigned
to IANA".

their bogon filters. It would also require that the RIR
to whom the block has been assigned arrange with their
upstream to have the test block routed;

That's trivial.

perhaps they could use the top block from the new assignment for the
test subnet, and then begin assigning from the bottom; hopefully by the
time any substantial portion of the space has been allocated, the need
for the test subnet will have passed, and the block can be used as part

Unfortunately, I doubt that. ARIN's been assigning from 69/8 for a year
or more and there are still lots of networks filtering it. If RIR's were
to setup such testing sites, it'd probably make sense to simply reserve
the minimum allocation size block from each IANA assigned block and assume
it will be used for reachability testing pretty much indefinitely. Maybe
they could be recycled after a number of years.