IPv6 Default Allocation - What size allocation are you giving out

Thu Oct 9 04:45:18 UTC 2014

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> > >Only short sighted ISP's hand out /56's to residential customers.
> > 
> > I am curious as to why you say it is short sighted? what is the technical
> > or
> > otherwise any other reasoning for such statement ?
> 
> 256 is *not* a big number of subnets.  By restricting the number of subnets residences get you restrict what >developers will design for.  Subnets don't need to be scares resource.  ISP's that default to /56 are making them a >scares resource.
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So, this is more of a 'opinion' / 'feel' (with all due respect) comment, and not something which has a (presently) compelling technical reasoning behind it ?

Regards

Faisal Imtiaz
Snappy Internet & Telecom
7266 SW 48 Street
Miami, FL 33155
Tel: 305 663 5518 x 232

Help-desk: (305)663-5518 Option 2 or Email: Support at Snappytelecom.net 

----- Original Message -----
> From: "Mark Andrews" <marka at isc.org>
> To: "Faisal Imtiaz" <faisal at snappytelecom.net>
> Cc: "Sam Silvester" <sam.silvester at gmail.com>, "NANOG" <nanog at nanog.org>
> Sent: Thursday, October 9, 2014 12:40:07 AM
> Subject: Re: IPv6 Default Allocation - What size allocation are you giving out
> 
> 
> In message
> <482678376.131852.1412829159356.JavaMail.zimbra at snappytelecom.net>,
> Faisal Imtiaz writes:
> > > A /60, /56, /52 or /48 allows the client to run multiple SLAAC
> > > subnets (16, 256, 4096 or 65536) and to have the reverse ip6.arpa
> > > zone delegated on a nibble boundary.
> > 
> > Understood...
> > 
> > > There is plenty of address space even handing out /48's to everyone.
> > 
> > Also Understood.
> > 
> > >Only short sighted ISP's hand out /56's to residential customers.
> > 
> > I am curious as to why you say it is short sighted? what is the technical
> > or
> > otherwise any other reasoning for such statement ?
> 
> 256 is *not* a big number of subnets.  By restricting the number
> of subnets residences get you restrict what developers will design
> for.  Subnets don't need to be scares resource.  ISP's that default to
> /56 are making them a scares resource.
> 
> Mark
> 
> > Faisal Imtiaz
> > Snappy Internet & Telecom
> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org
> 