Re: IP4 Space

[Owen DeLong <owen () delong com>]

On Mar 6, 2010, at 2:06 AM, Thomas Magill wrote:

> > According to ARIN, _IF_ you meet their requirements for obtaining an
> IPv4
> > block, then, you ALSO automatically meet their requirements for
> obtaining
> > an IPv6 block.
>
> Thank you for the clarification.  I am obviously in the very early stage
> of planning IPv6 for our company with hopes of at least having peers up
> this summer after our peak holiday season (mothers day).  I would prefer
> to get an ARIN block so that we feel less locked down to a provider by
> using their space.  
Seems reasonable.  That's precisely why I created the original and co-authored
the final version of the first Provider Independent End-User IPv6 policy.

> > However, there is a specific block being used to issue ARIN end-user
> > assignments, and, many ISPs filter that more liberally (/48) than they
> > filter blocks used for allocation (/32).  As such, your customers who
> are
> > multihomed _MAY_ have a better chance of having their prefix seen if
> > they use an ARIN direct assignment.
>
> So what seems to be the standard for the longest advertised prefix for
> v6 (compared to /24 for v4)?  If I get a /48 from ARIN how many
> non-aggregated prefixes should I expect to have?  This sounds like you
> are saying /48 is as specific at it would get.

Uh, 1.

If you need multiple discreet networks, you should probably get a /48 for
each of them from ARIN.

Owen