This file is gzipped. try tar xfvz ns-2_1b6_tar.tar On Mon, 31 Jan 2000, Bae Jin Han wrote: > Hi, > I want ns-2.1b6 with differentiated Services Package. > On web, I download Release of ns-2.1b6. > At ns-2_1b6_tar.tar file, > After tar -xvf ns-2_1b6_tar.tar , Error checksum occurred. > I don't know cause for it. > Why ? Give me Answer. > > I want to simulation with ns-2.1b6. > > Regards, > Jin Han. >