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ipv6 privacy extensions



 
 
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  #1  
Old July 21st 16, 04:05 PM posted to alt.comp.os.windows-8
HighSpy
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Posts: 15
Default ipv6 privacy extensions

Windows 8.1

I'm finally trying to get me head around ipv6

I was somewhat alarmed to discover that the low order 64 bits are
reserved for what someone called 'hardware addressing schemes' but I
can't remember where I read this.

https://en.wikipedia.org/wiki/IPv6

"In IPv6 when using address auto-configuration, the Interface Identifier
(MAC address) of an interface port is used to make its public IP address
unique, exposing the type of hardware used and providing a unique handle
for a user's online activity"

The article then goes on about 'privacy extensions'

"Privacy extensions are enabled by default in Windows (since XP SP1), OS
X (since 10.7), and iOS (since version 4.3). Some Linux distributions
have enabled privacy extensions as well"

If I open a command window I get

Physical Address. . . . . . . . . : 6C-FA-A7-3A-45-AC
....
DHCPv6 Client DUID. . . . . . . . :
00-01-00-01-1C-E1-07-B6-6C-FA-A7-3A-45-AC

and can see the physical address on the end of the DUID.

The local library recently demanded the wireless interface MAC addresses
from our local user groups laptops saying it would 'make our lives
easier as we no longer had to log in to the wireless network' but I
suspect it has more to do with tracking our usage.

Am I right to be concerned?

Thanks

--
Quis custodiet ipsos custodes?
Who watches the watchers? (loose translation)
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  #2  
Old August 1st 16, 12:04 PM posted to alt.comp.os.windows-8
None
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Posts: 74
Default ipv6 privacy extensions

on 07.21.2016, HighSpy supposed :
The local library recently demanded the wireless interface MAC addresses from
our local user groups laptops saying it would 'make our lives easier as we no
longer had to log in to the wireless network' but I suspect it has more to do
with tracking our usage.

Am I right to be concerned?


Let me get this straight, you want to know if a government entity (a
library) might be tracking and logging your use of their Internet
connection?
 




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