[CentOS] IPV4 is nearly depleted, are you ready for IPV6?
Adam Tauno Williams
awilliam at whitemice.org
Tue Dec 7 15:07:29 UTC 2010
> > 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].
More information about the CentOS
mailing list