1#!/usr/bin/python 2from topology import * 3 4''' 5Add route to 172.16.0.0/16 gw 172.16.1.2 on your host machine. 6 7Should result in something like: 8~$ traceroute 172.16.8.2 9traceroute to 172.16.8.2 (172.16.8.2), 30 hops max, 60 byte packets 10 1 172.16.1.2 (172.16.1.2) 0.481 ms 0.473 ms 0.467 ms 11 2 172.16.2.2 (172.16.2.2) 4.680 ms 4.702 ms 4.700 ms 12 3 172.16.3.2 (172.16.3.2) 8.759 ms 8.768 ms 8.766 ms 13 4 172.16.4.2 (172.16.4.2) 10.791 ms 10.789 ms 10.786 ms 14 5 172.16.5.2 (172.16.5.2) 12.826 ms 12.825 ms 12.821 ms 15 6 172.16.6.2 (172.16.6.2) 14.844 ms 17.858 ms 17.857 ms 16 7 172.16.7.2 (172.16.7.2) 17.858 ms 14.000 ms 13.999 ms 17 8 172.16.8.2 (172.16.8.2) 18.032 ms 18.029 ms 18.023 ms 18 19''' 20 21 22T = Topology() 23net1 = Network(T, 'nat0') 24net2 = Network(T) 25net3 = Network(T) 26net4 = Network(T) 27net5 = Network(T) 28net6 = Network(T) 29net7 = Network(T) 30net8 = Network(T) 31 32router1 = Host(T, net1, net2, args="natbox:172.16.2.1") 33router2 = Host(T, net2, net3, args="natbox:172.16.3.1") 34router3 = Host(T, net3, net4, args="natbox:172.16.4.1") 35router4 = Host(T, net4, net5, args="natbox:172.16.5.1") 36router5 = Host(T, net5, net6, args="natbox:172.16.6.1") 37router6 = Host(T, net6, net7, args="natbox:172.16.7.1") 38router7 = Host(T, net7, net8, args="natbox:172.16.8.1") 39 40h1 = Host(T, net8) 41 42sleep(1) 43start(T) 44loop() 45cleanup() 46