[arin-ppml] A modest proposal for IPv6 address allocations

Garry Dolley gdolley at arpnetworks.com
Tue Jun 2 16:58:05 EDT 2009

On Tue, Jun 02, 2009 at 06:58:50AM -0400, Joe Maimon wrote:
> michael.dillon at bt.com wrote:
>>> Ah I see. The typical residences will need 4,722,366,482,869,640,000,000 
>>> addresses, whereas your typical ASN is more likely to need 
>>> 1,208,925,819,614,620,000,000,000 right off the bat.  
>> No, no, no, no, no!
> Yes.
>> It is fundamentally
>> different from IPv6 and requires a change from IPv4 thinking, in order to 
>> fully understand it.
> No, its just a larger binary number.
> More bits, less magic.

No, if you think IPv6 is just IPv4 with more bits, you need to read:

* RFC 4291, "IP Version 6 Addressing Architecture"

And it will help to know what the thoughts are on subnetting IPv6:

* 3177, "IAB/IESG Recommendations on IPv6 Address Allocations to

* 5375, "IPv6 Unicast Address Assignment Considerations"

Garry Dolley
ARP Networks, Inc. | http://www.arpnetworks.com | (818) 206-0181
Data center, VPS, and IP Transit solutions
Member Los Angeles County REACT, Unit 336 | WQGK336
Blog http://scie.nti.st

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