http://info.iet.unipi.it/~luigi/ip_dummynet/
ipfw add pipe 1 icmp from any to any ipfw pipe 1 config bw 50Kbit/s queue 10 And these rules simulate an ADSL link to the moon: ipfw add pipe 3 ip from any to any out ipfw add pipe 4 ip from any to any in ipfw pipe 3 config bw 128Kbit/s queue 10 delay 1000ms ipfw pipe 4 config bw 640Kbit/s queue 30 delay 1000ms What I am getting at is we would like to simulate some adverse network conditions in terms of latency and bandwidth. --David Chubb