One point to my previous message: <br>I don't have to use tunnel brokers to reach IPv6 hosts. (btw, the paying a tunneling cost for every packet doesn't seem like a good idea)<br>I don't want to care which IP the destination uses.<br>
<br><br><div class="gmail_quote">On Thu, Sep 13, 2012 at 7:38 AM, Pars Mutaf <span dir="ltr"><<a href="mailto:pars.mutaf@gmail.com" target="_blank">pars.mutaf@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Andrew, <br><br>China has IPv6 for example but I cannot talk to them. <br>I don't have to install IPv6 to talk to them. If one day someone uses IPv7 (it is their right), I don't have to install IPv7.<br>The fact that there is a version field doesn't mean that all versions are supported. <br>
<br>Cheers, <br><div class="HOEnZb"><div class="h5"><br><div class="gmail_quote">On Thu, Sep 13, 2012 at 12:29 AM, Lachlan Andrew <span dir="ltr"><<a href="mailto:lachlan.andrew@gmail.com" target="_blank">lachlan.andrew@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Greetings Pars,<br>
<br>
I think that what you are describing is actually the way the Internet<br>
works. The "version" field in the IP header allows different users to<br>
run different versions over the same network.<br>
<br>
The IETF does not, and cannot, mandate that people use IPv6; that is<br>
why most people still do not use it.<br>
<br>
The reason that the routers need to be changed is that the process of<br>
routing requires them to know the address the packet is being sent to.<br>
The way this address is represented depends on the version of IP, and<br>
so whatever version of IP is used must be supported by (some of) the<br>
routers.<br>
<br>
I hope this removes some confusion.<br>
<br>
Cheers,<br>
Lachlan<br>
<div><div><br>
On 12 September 2012 18:06, Pars Mutaf <<a href="mailto:pars.mutaf@gmail.com" target="_blank">pars.mutaf@gmail.com</a>> wrote:<br>
> Dear colleagues,<br>
><br>
> I believe that the next step in IP's evolution would not be IPv6. It would<br>
> be "Discrete IP" allowing any IP version.<br>
> I concluded that Discrete IP better respects the end-to-end principles<br>
> therefore it is economically more viable.<br>
><br>
> -I propose that we do not touch the core Internet, i.e. enforce the<br>
> modification of all Internet routers.<br>
> -People should be free to choose the IP version that they wish because<br>
> deciding for others is a technology blocker. IETF designs IPv6, IETF blocks<br>
> its development. Because IETF does not give freedom of choice. This is not<br>
> normal. Some entities may use IPv6 others IPv4 yet others IPv7 for unknown<br>
> reasons. Everybody may agree on IPv6, or not. We do not know. We do not have<br>
> to.<br>
> -To give such freedom of choice, we need to change the end-nodes, for<br>
> example TCP.<br>
> -This is the end-to-end principle.<br>
><br>
> Here is a picture (in this picture we have a network of Internets running<br>
> random IP versions):<br>
> <a href="http://htmlimg4.scribdassets.com/3798kx3chs1szfhj/images/4-ce35c39dd1.jpg" target="_blank">http://htmlimg4.scribdassets.com/3798kx3chs1szfhj/images/4-ce35c39dd1.jpg</a><br>
><br>
> The question is:<br>
> ***Would this be the ideal for the Internet? Please discuss this question<br>
> without entering in design challenges.***<br>
><br>
> For more information, see my unpublished paper:<br>
><br>
> <a href="http://www.scribd.com/doc/105448105/Discrete-IP" target="_blank">http://www.scribd.com/doc/105448105/Discrete-IP</a><br>
><br>
> Cheers,<br>
> Pars<br>
<br>
</div></div><span><font color="#888888">--<br>
Lachlan Andrew Centre for Advanced Internet Architectures (CAIA)<br>
Swinburne University of Technology, Melbourne, Australia<br>
<<a href="http://caia.swin.edu.au/cv/landrew" target="_blank">http://caia.swin.edu.au/cv/landrew</a>><br>
Ph <a href="tel:%2B61%203%209214%204837" value="+61392144837" target="_blank">+61 3 9214 4837</a><br>
</font></span></blockquote></div><br>
</div></div></blockquote></div><br>