Lecture 12: IP Networks

The Structure of the Internet

The Internet consists of networks (or, more commonly nowadays -- subnets) connected by routers. The traceroute utility shows the path a datagram takes -- the following traceroute is from ironbark to the Victorian Regional Network (VRN).

 
1 r-busbgo.bendigo.latrobe.edu.au (149.144.21.254)  1 ms  2 ms  1 ms
2 r-bgoatm34.bendigo.latrobe.edu.au (149.144.10.250)  1 ms  1 ms  1 ms
3 r-sctech-atm.latrobe.edu.au (131.172.239.3)  5 ms  4 ms  3 ms
4 cisco-ltu-fddi.latrobe.edu.au (131.172.20.12)  5 ms  4 ms  4 ms
5 vic-gw.vrn.EDU.AU (203.21.130.129)  4 ms  5 ms  4 ms

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