[CentOS] IPV4 is nearly depleted, are you ready for IPV6?

Todd Rinaldo toddr at cpanel.net
Tue Dec 7 03:08:06 UTC 2010


On Dec 6, 2010, at 7:51 PM, Christopher Chan wrote:

> On Tuesday, December 07, 2010 08:57 AM, David wrote:
>> Folks
>> 
>> I have been following the IPV6 comments.
>> 
>> What concerns me with the loss of NAT are the following issues:
>> 
>> 1) My friend from half-way around the world comes to visit.  He turns
>> on his IPV6 enabled device (think Ipad), and wants to use my ISP's
>> connection. What IP address does he get?  If it's his home address,
>> that makes routing difficult.  If he dynamically gets one of "my" addresses
>>    a)  Did my ISP give me enough?
> 
> Let's see...if you apply for ipv6, you get a /48 network or as David put 
> it, 65k worth of /64 subnets.
> 
>>    b)  Do I get charged by my ISP on a per-device basis?
> 
> Heh, if they want to micromanage...

I'm still waiting for the day I get a home ISP that doesn't nickel and dime me. I agree that this is a potential concern. What's sad is that if they decide to do this, there's little I can do about it since ipv6 doesn't support NAT.

Don't get me wrong. Now I've reviewed the spec, I agree NAT isn't required, but unless all the end user ISPs turn into benevolent Oligopolies, it is a potential issue.


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