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Case Study 1 EIGRP Topology Diagram

Instructions Plan, design, and implement the complex International Travel Agency (ITA) EIGRP network based on the above diagram and following specifications. Implement the design on the lab set of routers. Verify that all configurations are operational and functioning according to the guidelines. Scenario The ITA needs its core network set up with EIGRP with the following specifications. It has also recently acquired Local Travel Agency, which was running OSPF. Use the addressing scheme shown in the diagram. • • • • • • •

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The ITA core network is running EIGRP in AS 1. Summarize the loopback interfaces on R2 with the best possible summary to the other EIGRP routers Loopback 192 on R3 represents a connection to the Internet. Originate a default route into EIGRP from R3. The Local Travel Agency router, R4, needs to communicate with the ITA core via OSPF area 0. Redistribute OSPF into EIGRP. Originate a default route into the OSPF process from R3. Configure R2 to act as a DHCP server on the Ethernet subnet between R2 and R3.

CCNP: Building Scalable Internetworks v5.0 – Case Study 1 EIGRP

Copyright © 2006, Cisco Systems, Inc

Case Study 2 OSPF Four Routers Topology Diagram Using a Cisco router as the Frame Relay switch (FRS):

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CCNP: Building Scalable Internetworks v5.0 - Case Study 2 OSPF Four Routers

Copyright © 2006, Cisco Systems, Inc

Using an Adtran Atlas 550 as the Frame Relay switch:

Instructions Plan, design and implement the International Travel Agency network shown in the diagram, and described below. Verify that all configurations are operational and functioning according to the guidelines. Scenario The International Travel Agency needs its core network set up for OSPF with the specifications indicated in the diagram and shown below. • • • • • •

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Use the addressing scheme shown in the diagram. Use OSPF with various networks shown in the diagram. Configure the OSPF backbone area to be on Loopback0 on Headquarters. Configure the Frame Relay subnets as point-to-point subinterfaces. The link between Headquarters and East should be in area 100, and the link between Headquarters and West should be in area 300. Area 300 should be configured as an NSSA. Configure East’s loopback interfaces to be in area 200. Summarize this area with the most efficient summary.

CCNP: Building Scalable Internetworks v5.0 - Case Study 2 OSPF Four Routers

Copyright © 2006, Cisco Systems, Inc

• • •

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Redistribute the loopback network on West into OSPF. Create virtual links as necessary for full connectivity. Make sure that all loopback interfaces get advertised with the correct subnet mask.

CCNP: Building Scalable Internetworks v5.0 - Case Study 2 OSPF Four Routers

Copyright © 2006, Cisco Systems, Inc

Case Study 3 OSPF Five Routers (Optional) Topology Diagram Using a Cisco router as the Frame Relay switch:

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CCNP: Building Scalable Internetworks v5.0 – Case Study 3 – OSPF Five Routers Copyright © 2006, Cisco Systems, Inc

Using an Adtran Atlas 550 as the Frame Relay switch:

Instructions Plan, design, and implement the International Travel Agency (ITA) network shown in the diagram and described below. Verify that all configurations are operational and functioning according to the guidelines. Scenario The ITA needs its core network set up for OSPF with the following specifications. Use the addressing scheme shown in the diagram. • • • • • • 2-3

Configure the OSPF backbone area on the Ethernet connection between R1 and R5. Configure the Frame Relay subnet as a point-to-multipoint network in area 100. Configure R2’s loopback interfaces to be in area 200. Summarize this area with the most efficient summary. Configure the Ethernet connection between R3 and R4 to be in area 300. Add the loopback on R3 to area 300. Make area 300 a totally NSSA area.

CCNP: Building Scalable Internetworks v5.0 – Case Study 3 - OSPF Five Routers

Copyright © 2006, Cisco Systems, Inc

• • •

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Redistribute the loopback networks on R4 that do not belong in any OSPF area. Create virtual links as necessary for full connectivity. Make sure that all loopback interfaces get advertised with the correct subnet mask.

CCNP: Building Scalable Internetworks v5.0 – Case Study 3 - OSPF Five Routers

Copyright © 2006, Cisco Systems, Inc

Case Study 4 BGP Topology Diagram

Instructions Plan, design, and implement the International Travel Agency (ITA) core network as well as the Travel Data Providers (TDP) network and allow the networks to communicate via BGP. Verify that all implementations are operational and functional according to guidelines. Scenario The International Travel Agency needs both its core network, and its Travel Data Providers network set up with EIGRP. Configure BGP to advertise routes between the two networks.

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CCNP: Building Scalable Internetworks v5.0 – Case Study 4 - BGP

Copyright © 2006, Cisco Systems, Inc

• • • • • • • • • • • • •

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Use the addressing scheme shown in the diagram. Configure the International Travel Agency network to be in EIGRP AS 65001. Configure the Travel Data Providers network to be in EIGRP AS 65002. Disable automatic summarization in both EIGRP domains. Configure the International Travel Agency network to be in BGP AS 65001, and the Travel Data Providers network to be in BGP AS 65002. Advertise the 192.168.14.0/30 and 192.168.34.0/30 networks in both EIGRP autonomous systems. All routers will be participating in BGP. Configure all routers for a full mesh of IBGP peers in each system. Peer R1 and R2 using loopback addresses, not their directly connected interfaces. Advertise all loopback interfaces into the BGP process, except on R2, where the only loopback advertised should be loopback 2. On R2, create a static summary route for the rest of its loopback interfaces and advertise this static route in BGP. R4 should send a summary route to ITA representing all R4’s loopback interfaces. R4 should prefer the path to ITA networks via the Ethernet link between R1 and R4. Accomplish this by modifying the MED advertised to TDP. Routers in the ITA AS should prefer the path to TDP networks via the Ethernet link between R1 and R4. Accomplish this by modifying the local preference of routes being advertised in from TDP.

CCNP: Building Scalable Internetworks v5.0 – Case Study 4 - BGP

Copyright © 2006, Cisco Systems, Inc