N reasons for not deploying ipv6 (was: Re: [narten@us.ibm.com: PI addressing in IPv6 advances in ARIN])

[Nick Hilliard]

> What might the other ones be, I still haven't seen a list.

There are lots of reasons, including but not limited to:

o  cost of deployment for network services providers
o  lack of demand for content providers caused by lack of perceived benefit
o  continuing problems with supporting ipv6 in core networks (mostly due 
to legacy equipment and lack of interest in upgrading)
o  poor quality ipv6 global routing infrastructure
o  not enabled by default on Microsoft operating systems
o  poor AAA support on dialup / dsl aggregation / NAS devices
o  lack of multihoming for end-users who need this
o  almost non-existent support for CPE routers outside some mainstream 
vendors
o  continued problems with AAAA lookups from some braindead resolvers

And of course, the primary reason: if the internet ain't broke, why do 
we need to fix it?

Nick