Scenario 4: Multi Areas OSPF

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Just sharing one of my scenario. Hope it can helps for those who are
pursuing CCNA/CCNP.

Configure the routers using the following information:

     * Each router connected using point-to-point network link.
     * Serial link on Router 3 (R3) to Router 4 (R4) is DTE-DCE.
     * Use only OSPF routing protocol.
     * Each OSPF process should use Router number (Eg. Router 1 (R1) has
OSPF process ID 1).
     * Do not use Loopback interface.
     * Use specific Router ID using address 20.20.20.<Router number>
(Eg. Router 1 (R1) has Router ID
     * Do not involve any Designated Router (DR).
     * Do not use dynamic layer 3 to layer 2 mapping on any of these
frame relay connections, instead, use static mapping.
     * Frame relay link between R3 and R4 is provided as backup link.
Use the Serial link as primary link. Do not use backup interface command
to accomplish this.
     * Router 4 (R4) should not receive ospf summary and external
updates from Router 3 (R3).
     * Routing in Router 4 (R4) should appear as follows:

   is subnetted, 2 subnets
       C is directly connected, Serial0.1
       C is directly connected, Serial1
       O*IA [110/74] via, 00:00:36, Serial1

David Sudjiman

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