Is NAT can provide some kind of protection?

Marshall Eubanks tme at
Sat Jan 15 08:31:17 CST 2011

On Jan 15, 2011, at 9:19 AM, Leen Besselink wrote:

> On 01/15/2011 03:01 PM, Joel Jaeggli wrote:
>> On 1/15/11 1:24 PM, Leen Besselink wrote:
>>> I'm a full supported for getting rid of NAT when deploying IPv6, but
>>> have to say the alternative is not all that great either.
>>> Because what do people want, they want privacy, so they use the
>>> IPv6 privacy extensions. Which are enabled by default on Windows
>>> when IPv6 is used on XP, Vista and 7.
>> There aren't enough hosts on most subnets that privacy extensions
>> actually buy you that much. sort of like have a bunch of hosts behind a
>> single ip, a bunch of hosts behind a single /64 aren't really insured
>> much in the way of privacy, facebook is going to know that it's you.
> Now this gets a bit a offtopic, but:
> If you already have a Facebook account, any site you visit which has
> "Facebook Connect" on it usually points directly at for
> downloading the 'Facebook connect' image so the Facebook-cookies have
> already been sent to Facebook.

That assumes that you use the same browser for Facebook as for other uses. I recommend not
doing that, but to dedicate a browser for Facebook only, precisely because 
Facebook plays these sorts of games and is such a security hole. 


> Why would Facebook care about your IP-address ?
>>> And now you have no idea who had that IPv6-address at some point
>>> in time. The solution to that problem is ? I guess the only solution is to
>>> have the IPv6 equivalant of arpwatch to log the MAC-addresses/IPv6-
>>> address combinations ?
>>> Or is their an other solution I'm missing.

More information about the NANOG mailing list