Rtorrent which I use sometimes have ability to completely disable plain text communication : man rtorrent allow_incoming (allow incoming encrypted connections), try_outgoing (use encryption for outgoing connections), require (disable unencrypted handshakes), require_RC4 (also disable plaintext transmission after the initial encrypted handshake), enable_retry (if the initial outgoing connection fails, retry with encryption turned on if it was off or off if it was on), prefer_plain text (choose plaintext when peer offers a choice between plaintext transmission and RC4 encryption, otherwise RC4 will be used). and many other clients have similar abilities. I'm afraid that full encrypted and enabled by default communication is only a matter of time and we will lose this "fight" very soon. > Some clients P2P clients are nice about there encryption and negotiate > encryption ahead of time using plain communication. I.E. Limewire, > Azureus. However, some just start TLS and that is all you can see. > > Looking at ipp2ps signatures, I don't see anything that leads me to > believe they track that kind of info. > > > > David Bierce > > On Nov 11, 2007, at 9:48 PM, Mohan Sundaram wrote: > > sAwAr wrote: > >> Hi > >> I believe that whole question is in topic. Is there any way to > >> recognize ( and then shape ) p2p traffic which is encrypted? > >> Modern p2p clients have this ability moreover some of them have > >> this enabled by default. Now I'm using ipp2p for iptables but as I > >> know this doesn't recognize encrypted traffic. > >> Thanks in advance. > >> Pozdrawiam > >> Szymon Turkiewicz > > > > Have not tried this. An idea. P2P initiations are not encrypted > > AFAIK. Thus connections can be marked and related traffic shaped. If > > initiation is also encrypted, then I think we have a serious problem. > > > > Mohan > > _______________________________________________ > > LARTC mailing list > > LARTC@xxxxxxxxxxxxxxx > > http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc > > _______________________________________________ > LARTC mailing list > LARTC@xxxxxxxxxxxxxxx > http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc