set term pag off

loop cre

set int ip address loop0 192.168.2.1/24
set int state loop0 up
set nsim delay 20 ms bandwidth 1 gbit packet-size 128
comment { add drop-fraction 0.8 or some such}
nsim output-feature enable-disable loop0

packet-generator new {
    name icmp
    limit 0
    size 128-128
    interface local0
    node ethernet-input
    data {
        IP4: 0001.dead.beef -> 0002.dead.beef
        ICMP: 192.168.1.2 -> 192.168.2.2
        incrementing 30
    }
}

set int ip address pg0 192.168.1.1/24
set ip arp loop0 192.168.2.2 0003.dead.beef