9 Replies Latest reply: Aug 29, 2010 8:57 AM by jazz RSS

    Troubleshooting a VLSM Addressing Design

    jazz

      Pls help with addressing scheme especially the East network. Question asks to begin with the HQ network then the Central, East and lastly the West network.

       

       

       

       

      PLS HELP ME WITH THE ADDRESSIGN SCHEME.  I'm new to this

       

      In this activity, you have been given the network address 172.16.0.0/16 to subnet and provide the IP addressing for the network shown in the Topology Diagram. VLSM will be used so that the addressing requirements can be met using the 172.16.0.0/16 network.

      The network has the following addressing requirements:

       

        East Network Section
      • The NE (Northeast) LAN1 will require 4000 host IP addresses.
      • The NE (Northeast) LAN2 will require 4000 host IP addresses.
      • The SE-BR1 (Southeast Branch1) LAN1 will require 1000 host IP addresses.
      • The SE-BR1 (Southeast Branch1) LAN2 will require 1000 host IP addresses.
      • The SE-BR2 (Southeast Branch2) LAN1 will require 500 host IP addresses.
      • The SE-BR2 (Southeast Branch2) LAN2 will require 500 host IP addresses.
      • The SE-ST1 (Southeast Satellite1) LAN1 will require 250 host IP addresses.
      • The SE-ST1 (Southeast Satellite1) LAN2 will require 250 host IP addresses.
      • The SE-ST2 (Southeast Satellite2) LAN1 will require 125 host IP addresses.
      • The SE-ST2 (Southeast Satellite2) LAN2 will require 125 host IP addresses.

        West Network Section
      • The SW (Southwest) LAN1 will require 4000 host IP addresses.
      • The SW (Southwest) LAN2 will require 4000 host IP addresses.
      • The NW-BR1 (Northwest Branch1) LAN2 will require 1000 host IP addresses.
      • The NW-BR1 (Northwest Branch1) LAN1 will require 1000 host IP addresses.
      • The NW-BR2 (Northwest Branch2) LAN1 will require 200 host IP addresses.
      • The NW-BR2 (Northwest Branch2) LAN2 will require 200 host IP addresses.

        Central Network Section
      • The Cent (Central) LAN1 will require 8000 host IP addresses.
      • The Cent (Central) LAN2 will require 4000 host IP addresses.


        The WAN links between each of the routers will require an IP address for each end of the link.

      In this activity, you have been given the network address 172.16.0.0/16 to subnet and provide the IP addressing for the network shown in the Topology Diagram. VLSM will be used so that the addressing requirements can be met using the 172.16.0.0/16 network.

      The network has the following addressing requirements:

       

        East Network Section
      • The NE (Northeast) LAN1 will require 4000 host IP addresses.
      • The NE (Northeast) LAN2 will require 4000 host IP addresses.
      • The SE-BR1 (Southeast Branch1) LAN1 will require 1000 host IP addresses.
      • The SE-BR1 (Southeast Branch1) LAN2 will require 1000 host IP addresses.
      • The SE-BR2 (Southeast Branch2) LAN1 will require 500 host IP addresses.
      • The SE-BR2 (Southeast Branch2) LAN2 will require 500 host IP addresses.
      • The SE-ST1 (Southeast Satellite1) LAN1 will require 250 host IP addresses.
      • The SE-ST1 (Southeast Satellite1) LAN2 will require 250 host IP addresses.
      • The SE-ST2 (Southeast Satellite2) LAN1 will require 125 host IP addresses.
      • The SE-ST2 (Southeast Satellite2) LAN2 will require 125 host IP addresses.

        West Network Section
      • The SW (Southwest) LAN1 will require 4000 host IP addresses.
      • The SW (Southwest) LAN2 will require 4000 host IP addresses.
      • The NW-BR1 (Northwest Branch1) LAN2 will require 1000 host IP addresses.
      • The NW-BR1 (Northwest Branch1) LAN1 will require 1000 host IP addresses.
      • The NW-BR2 (Northwest Branch2) LAN1 will require 200 host IP addresses.
      • The NW-BR2 (Northwest Branch2) LAN2 will require 200 host IP addresses.

        Central Network Section
      • The Cent (Central) LAN1 will require 8000 host IP addresses.
      • The Cent (Central) LAN2 will require 4000 host IP addresses.


        The WAN links between each of the routers will require an IP address for each end of the link.

       

       

       

       

       

       

      Use the last 256 addresses of the assigned subnet to create subnetworks for the WAN links
      Use the last 256 addresses of the assigned subnet to create subnetworks for the WAN links

       

      There is no need to calculate for future growth of the networks in this activity.

       

      Step 1. Determine the subnet for the WAN links

        The subnet for HQ is 172.16.0.0 to 172 16.63.255
        The last 256 addresses should start with the 172.16.63.0 address.

      Step 2. Assign the first subnet to the WAN link from HQ to CENTRAL.

      Step 3. Assign the first subnet to the WAN link from HQ to EAST.

      Step 4. Assign the first subnet to the WAN link from HQ to WEST.