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| Authored by: Anonymous on Tuesday, June 05 2012 @ 11:47 AM EDT |
Why would you connect your toaster to a public network if you don't want people
to know when you're making toast?
On that note: "Does anybody want any toast!"[ Reply to This | Parent | # ]
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| Authored by: JamesK on Tuesday, June 05 2012 @ 11:52 AM EDT |
Every device has a unique address, random or not. Now with a device such as a
smoke alarm, it could generate a SMS text message that could be sent to your
phone. In that situation, it makes no difference if it uses a random number or
not. On the other hand, if you want to set your thermostat, you'd have to use
the MAC based address or some other means to reliably contact it. Of course,
you'd probably want some other security method too.
One thing about those random addresses, before they're used, the device is
supposed to announce it's intention to use it, with something called
"neighbor solicitation and neighbor advertisement"(ICMPv6 types 135
& 136). If that address is in use, then it has to try another one. So, the
address will be unique for the time it's in use, but another device may have
that address at another time, just like with DHCP addresses.
---
The following program contains immature subject matter. Viewer discretion is
advised.[ Reply to This | Parent | # ]
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| Authored by: Anonymous on Tuesday, June 05 2012 @ 11:54 AM EDT |
... the RIAA will still target the toaster for downloading music :)
RAS[ Reply to This | Parent | # ]
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| Authored by: tknarr on Tuesday, June 05 2012 @ 01:45 PM EDT |
Actually it would. The norm for IPv6 is autoconfiguration: rather than your
ISP handing out individual addresses to each machine, it hands out a /64 block.
Each machine in your network then creates it's own address by turning it's MAC
address into an EUI-64
identifier and appending that to the 64-bit prefix the ISP gave you. It's
possible to use DHCP to hand out IPv6 addresses, but unusual because of the
overhead involved.
A /64's the smallest allocation that an ISP's supposed
to hand out. My tunnel broker, Hurricane Electric, hands out routed /48
assignments. Yes, that means I have 64K networks each containing 4 billion times
as many addresses as IPv4 permits. [ Reply to This | Parent | # ]
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| Authored by: Anonymous on Tuesday, June 05 2012 @ 05:58 PM EDT |
> Wait. Your toaster would have a unique IP address?
It could do.
> This is getting really creepy.
This is why IPv6 requires a decent firewall at your border. Those people that
have gotten used to using NAT on IPv4 to hide their internal devices are going
to be in trouble...
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| Authored by: old joe on Tuesday, June 05 2012 @ 06:48 PM EDT |
Your toaster would have a unique IP address because that is simpler than giving
it an address that changes.
Once the toaster is on your domestic net so you can contact it from your bed to
put the toast on, then it is on the net - you domestic net is just part of the
net.
Lets hope router security gets better as we are depending on that to stop
strangers from accessing our stuff. [ Reply to This | Parent | # ]
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| Authored by: Anonymous on Wednesday, June 06 2012 @ 12:13 AM EDT |
Do the same thing to your toaster I do to all these little (and big) printers:
tell them not to talk to the world. Go to the little window of the printer or
the configuration page and put in the field for gateway 0.0.0.0 or ::0
That way packets won't go beyond your personal network.
[ Reply to This | Parent | # ]
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