> > > Simply I imagine that in same style like ExitPolicy. Did > > you ask others, why > > are they using ExitPolicies? I dont think so. It is part of > > Tor and nobody > > (as far as I know) is against - because it is free choice > > of relay operator > > which kind of traffic he will support. > > Yes, but exit nodes already no where your traffic is going (and on which > port), middle and entrance nodes do not.
You probably mean "exit nodes already know"? Yes, they are and middles not. Same as for ExitPolicy. > If they did, it would defeat the purpose of tor I believe. Of course, middle nodes have no idea about data they are transporting. > Anonymity of requests is not limited to decoupling the destination IP from > the user, but also to decoupling the type of traffic (i.e port) to the user, > don't you think? > There isnt any relation between "type of traffic" (port) and user. Exit node dont know this relation - and it is purpose of Tor. But exit nodes know target IP/port (it is used in ExitPolicy construct) and I think it can be handful to support also prioritization. With same reason as ExitPolicy. It is technically possible and I donst see any security issue with that. Marek