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Homework Help: IP Router & IP Forwarding Table

  1. May 12, 2012 #1
    1. The problem statement, all variables and given/known data

    Consider an IP Router with four link interfaces numbered 0 to 3. Packets are to be forwarded according to the table:
    http://img688.imageshack.us/img688/4844/iproutertable.jpg [Broken]

    Write down an IP forwarding table with ve entries that forwards packets to the correct interfaces. Use CIDR (Classless Interdomain Routing) notation for the network addresses.

    3. The attempt at a solution

    Interface 0: 11100000 00 -> 224.0.0.0/10

    Interface 1: 11100000 01000000 -> 224.64.0.0/16


    Interface 2: 11100001 0 -> 225.0.0.0/9 (Solution manual says it should be 1110000 -> 225.0.0.0/7 --- Why/How?)
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. May 12, 2012 #2
    Anyone? really need help with this one...
     
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