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

Tue Dec 7 01:51:18 UTC 2010
Christopher Chan <christopher.chan at bradbury.edu.hk>

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...

> 2) Today, my ISP doesn't know (or doesn't care) how many devices I
> have in my home -- my Linux gateay with DHCP and NAT hides all of
> that.  With IPV6, what is to prevent my ISP from charging me a
> per-device fee?

I don't know...a bridging firewall?

> 3) When I connect my IPV6 refrigerator with its automatic inventory
> system tracking every RFID-enabled carrot I use, won't I be making my
> shopping habits visible to all those annoying advertisers?  Or, in
> other words, am I compromising my privacy?  Actually, although such
> dissemination of information can be blocked by a correctly designed
> firewall, I suspect the "Free IPv6 DSL Modem and Router, Sponsored by
> <your-favorite-commercial-site>" that comes with your ISP contract,
> would err on the side of promiscuity.
> Concerned Linux/Windows/Mac/Wii/Iphone/Ipod/Ipad/Xbox user

See above.