andrew michael baron wrote:

> So Clint, are you saying that you are not interested in considering a 
> problem of this magnitude that will arrive in ten short years from now?

No, I said it would be 10 years before IPv6 will be in wide use.  The 
military will drive it's adoption initially (following of course the 
academic implementations in place now), followed if not coinciding with 
wireless adoption.  Wireless will be the first to widely adopt it, 
simply because it's a closed box, they can work with the manufacturers 
to support it, and they have more IP-enabled devices to support than any 
other ISP.  Much much further down the road will be the adoption of IPv6 
on PCs and for the wider Internet.  The main problem with IPv6 adoption 
is the problem with maintaining two Internets, with tunnels running 
amuck tunneling IPv6 over IPv4 and later IPv4 over IPv6.  It's a huge 
logistical problem.

To explain where I'm at in the chain, I implement new networks, systems 
and software for a living.  When the adoption rate has picked up to the 
point where all the devices I need to glue together a cohesive network, 
with computers, routers, switches, network devices (firewalls, load 
balancers, etc), have stable IPv6 implementations, then I'll start 
considering what I need to do to learn an entirely new set of protocols 
that will double the amount of knowledge I need to have to operate 
effectively.  Throwing away codebases with 15+ years of work in 
developing an IPv4 stack is no simple undertaking, and even bigger than 
that is throwing away the experience of a workforce with 15+ years of 
experience working with IPv4.

Addressing is only one of the reasons to consider switching to IPv6, and 
it's probably not even the best one.  Among the better reasons include 
QoS built into the IP stack (most implementations don't contain QoS 
support right now), IPSec built into the protocol, better routing based 
on geographic regions (meaning aggregation is much simpler, requiring 
less memory to hold routing tables), better autoconfiguration 
(eliminating DHCP), multicast routing built into the protocol, etc.  
However, of all of these except addressing are easily done with IPv4 
implementations, it's just that they're not available on the Internet in 
a standard fashion.  Which only leaves addressing as the crunch to 
switch, and since that's not an immediate issue anymore (last I heard 
2032 was the estimated date for running out of IPv4 addresses by the 
IANA), we're still waiting for a driving force to drive adoption.

>
> Yea, years away is not very far either Clint, you should be very, 
> very scared. I'm warning you Clint!!! This is dangerous. You should 
> be VERY VERY worried.

I don't know if this was serious or sarcasm.  I'm not worried, and I'll 
tell you why.  I understand at a fundamental level how IP and the 
Internet works and how addresses are assigned.  I can tell you, from 
memory, in intricate detail how data moves about on the Internet, from 
session establishment, to packet routing (and the protocols that build 
those routing tables).  I can tell you detailed reasons why addressing 
is no longer an immediate issue, and thusly with that expert knowledge, 
I'm not concerned.  There's not a lot of things I'm an expert in, this 
is one of them, so I'm thusly incredibly confident that there's 
absolutely nothing to be concerned about.

>
> Whew! you are hot tonight!
>
Yeah, I know, sorry.  It's really not an incredibly topical conversation 
for this list, but still fun none-the-less.  We should probably take it 
off-list if we want to continue past this point. 

Clint

-- 
Clint Sharp
New Media Guy & Technologist
ClintSharp.com        Contact Info: http://clintsharp.com/contact/

We are the media. 



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