Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!ll-xn!ames!pasteur!ucbvax!NNSC.NSF.NET!craig From: craig@NNSC.NSF.NET (Craig Partridge) Newsgroups: comp.protocols.tcp-ip Subject: refund mechanisms in charging Message-ID: <8804261909.AA01813@ucbvax.Berkeley.EDU> Date: 26 Apr 88 13:30:10 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 18 Dennis, I suspect you can't permit a refund mechanism.... Take the case of the 14 of 15 megabytes transferred. If I know that aborting a connection before all the data requested has been passed then I can happily set up schemes with my friends to pad all FTPable files with an extra few megabytes of junk. Then we transfer our data, abort while the junk is being transferred, and apply for a refund. Voila, free networking.... I think the implication of this is that you'd have to certify programs as not able to abuse the charging scheme this way before you permitted a refund mechanism. Craig