[arin-ppml] early experimenter /32 catch-22

[Aaron Hughes]

IPv6 table masks (as of 5 min ago):

16, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 64

914 /48s
2056 /32s
455 non-48s or 32s
3425 Total

Cheers,
Aaron


On Fri, Oct 08, 2010 at 06:38:42AM -0700, David Williamson wrote:
> On Thu, Oct 07, 2010 at 04:08:37PM -0400, Christopher Morrow wrote:
> > replace 'wireless network' with '6rd' or 'network with a
> > new/different/other routing domain/requirements'
> 
> Absolutely - there's a clear need.
>  
> > (you can't guarantee longer prefixes than a /32 get global
> > reachability... so subnetting the current allocation isn't feasible)
> 
> Is that really true?  Would someone fess up about current routing
> practice?  We definitely accept longer prefixes, as we only have a /45,
> and we only advertise /48s.  Of course, that's in the PI block.
> 
> There's definitely risk with accepting longer prefixes (a /32 de-agg'd
> to /48 is an interesting DoS), but what are people actually doing?  I
> suspect there are places where anything longer than a /32 isn't
> accepted, but all I've heard so far is the rumor of that.
> 
> -David
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Aaron Hughes 
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