Brian, I'd like to join this from another angle. What exactly does changing your v4 address get you in terms of privacy? It's my understanding that protocols including TCP, HTTP, TLS, and very much the web platform are fairly easily linked. That is, it's relatively easy to determine with reasonably widely available software whether two connections come from the same end-system across a NAT and regardless of what's done to the IP addresses. So, I'd like to better understand what attacks changing the outer DHCP address protects against in terms of privacy. _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf