[afripv6-discuss] What are the benefits of IPv6 over IPv4

[Mark Tinka]

On Monday, June 04, 2012 12:08:20 AM Kivuva wrote:

> Kondwani, you are right. What about issuing a /8 class A
> IPv4 for private addresses, or issuing /8 for several
> legacy companies. That is 16.7million or 2^24 hosts per
> company. Such a waste.

Just to be pedantic, IP has been classless since 1994.

> The same lack of foresight is seen in allocation of IPv6
> by giving small entities /48 (that is more than all
> addressable numbers in v4) although that leaves us with
> 281 trillion /48.
> 
> Mark Elkins! Can someone enlighten me why a home may need
> a /60? Still I don't see how we will exhaust v6 in our
> lifetime even after.

Discussions on this abound. Search NANOG and other such 
mailing lists, and you'll find various views.

General consensus is, use what you're comfortable with. But 
if you want to support SLAAC, you can only do that with a 
/64 subnet.

Mark.
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