On Fri, 2004-11-05 at 12:03, Florian Weimer wrote: > * Jan Minar: > > >> Is this a serious problem? > > > > Maybe. It is a very serious bug. > > Actually, it's a feature because some TCP extensions use SYN+FIN ("TCP > for Transactions" or something like that). TTCP is a dead proposal, it brings into TCP the IP spoofing problems of UDP, if you want to speed TCP startup time just send the data with the third packet. Baruch