Hi All, I attended ACM's SIGCOMM last week. A few things caught my attention that I thought might be of interest here: "CircuitStart: A Slow Start For Multi-Hop Anonymity Systems" Christoph Döpmann and Florian Tschorsch. Link: https://dl.acm.org/authorize?N666917 "Design of SOCKS Version 6" Vladimir Olteanu and Dragoş Niculescu. Link: https://dl.acm.org/authorize?N666057 Related Internet Draft: https://datatracker.ietf.org/doc/draft-olteanu-intarea-socks-6/ One thing about their design for SOCKS 6 is that is has options, and those options could be used to specify some sort of isolation property instead of overloading username/password. Thanks, Iain.