MAC address as random input?

Posted Jul 26, 2012 12:18 UTC (Thu) by farnz (subscriber, #17727)
In reply to: MAC address as random input? by kleptog
Parent article: Random numbers for embedded devices

More accurately, it adds an extra IP that changes regularly; you still have the permanent IP that you would have if you didn't enable privacy extensions, but you also have a temporary IP that changes, and that is used in preference to your permanent IP for outgoing connections.

The idea is that if you give me your permanent IP, I can connect to you. If you don't, the only IP of yours I know about is your temporary IP, which changes regularly - so while it's fine for the duration of communication you initiated, it's not useful in a few days time.