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DJB was wrong... even if he was right too.DJB was wrong... even if he was right too.Posted Jan 27, 2011 22:09 UTC (Thu) by bojan (subscriber, #14302)In reply to: DJB was wrong... even if he was right too. by foom Parent article: LCA: IP address exhaustion and the end of the open net
> Both things are equivalent: addition of a new feature to your software that none of your customers are going to actually use.
Equivalent? I can't even test IPv6 without obtaining a new address. I could if my IPv4 worked instead. That's why it would get included - it would be actually useful at some point to people _connected_ to the net. In fact, we wouldn't even be talking about the address crunch.
> My router could have added IPv6 support 10 years ago, too, without me knowing it. But it didn't.
Yeah, of course it didn't. Where would you get an IPv6 address from anyway?
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DJB was wrong... even if he was right too. Posted Jan 28, 2011 15:09 UTC (Fri) by zlynx (subscriber, #2285) [Link]
> Where would you get an IPv6 address from anyway?
Did you miss that every IPv4 address is automatically assigned an entire IPv6 network of its own in the 2002::0 range?
Here is mine, for example: 2002:4051:69fa::1 You should be able to get the web page at http://[2002:4051:69fa::1] or http://oberon.zlynx.org/ The DNS has both A and AAAA records.
See the 4051:69fa? That's my IPv4 address: 64.81.105.250
If home routers were preconfigured with 6to4 and radvd, every home user would already be on IPv6.
Sure, an inefficient IPv6 that is tunneled through IPv4, but it sets the stage for moving to ISP assigned addresses later on.
DJB was wrong... even if he was right too. Posted Jan 28, 2011 15:53 UTC (Fri) by tialaramex (subscriber, #21167) [Link]
You can test almost everything via a tunnel. The various _automatic_ tunnels which other people have mentioned all use your IPv4 address in order to assign you an IPv6 unicast subnet for your use.
In this scenario you are an IPv6 island, connected to other IPv6 islands by tunnel. If they _wanted to_ ISPs could compete by providing a tunnel endpoint closer to their subscribers, so IPv6 would work faster on their network than on a competitors. Technologies like 6to4 even made this very easy by using an anycast address, so the ISP can put the tunnel endpoint anywhere with no config change for the user. The natural endpoint of such competition would be native IPv6, no tunnels.
But the major ISPs as we've tried repeatedly to explain, do not care. If the closest endpoint is on another continent, why should they care? Providing the minimum possible service is a cost saving. So if you try to use such a tunnel, expect poor performance and zero technical support from your ISP. It's just not in their interest to care.
Have I told the story about the cable TV company who added a "digital surcharge" to pay for equipment upgrades ready for digital cable? I bet you're thinking that they had to do that - to pay for the upgrades, right? Nope, there were no upgrades. It was just another way to get more money. When digital cable actually arrived they couldn't offer it, because their equipment was too old. No matter, the customers still have money, just charge them again.
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