Re: IPV4 is nearly depleted, are you ready for IPV6?

[Adam Tauno Williams <awilliam@xxxxxxxxxxxxx>]

> > 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 

> Set your refrigerator to fe80:0001:: and it's now only accessible on
> the local subnet.
> Quoting http://www.litech.org/~jeff/private/ipv6primer/html/
> Two prefixes are set aside for link-local and site-local addresses. 

site-local addresses are officially deprecated.

If you want a device to only be available locally - block the traffic
to/from that device.  Or block if from acquiring a public address and
leave it as link-local only [most people will, I think, just choose the
first options - like they do now when they want to block a device]. 

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