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7/16/2019 27405147 Exploration Routing OSPF Skills Based Assessment
http://slidepdf.com/reader/full/27405147-exploration-routing-ospf-skills-based-assessment-5634fa1d82027 1/4
All contents are Copyright © 1992 –2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 1 of 4
Exploration Routing: OSPF Skills Based Assessment
Learning Objectives
Upon completion of this lab, you will be able to:
Create an addressing scheme to accommodate the hosts on the network
Cable network according to the diagram
Configure OSPF
Configure OSPF priorities
Configure OSPF cost
Verify OSPF operation
Configure a static default route
Scenario
You are a network engineer for an ISP with multiple locations that are connected through a switch. You areassigned the task of creating an addressing scheme for each client’s LAN. You must set the OSPF prioritiesso that the ISP router is the DR and the Remote_1 router is the BDR. You must also make sure that theRemote_2 router never takes part in the DR/BDR election.
7/16/2019 27405147 Exploration Routing OSPF Skills Based Assessment
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CCNA ExplorationRouting Protocols and Concepts Exploration Routing: OSPF Skills Based Assessment
All contents are Copyright © 1992 –2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 4
Task 1: Create an Addressing Scheme.
Step 1: Create an addressing scheme for each LAN using the 192.168.1.0/24 address space.
Remote_1:
Lo0: 60 Hosts
Lo1: 12 HostsRemote_2:
Lo0: 62 Hosts
L01: 28 Hosts
Step 2: Record the appropriate subnet address and mask in Table 1.
Table 1
Device Interface IP Address Subnet Mask
ISPFa0/0
Lo0
Remote_1Fa0/0
Lo0
Lo1
Remote_2Fa0/0
Lo0
Lo1
Instructor’s Initial ______
Task 2: Cable and Configure Network.
Step 1 Cable the network according to the Topology Diagram.
Step 2 Place the correct interface address for each router in Table 2.
Table 2Device Interface IP Address Subnet Mask
ISPFa0/0 10.10.10.1 255.255.255.248
Lo0 188.46.37.254 255.255.255.252
Remote_1Fa0/0 10.10.10.3 255.255.255.248
Lo0
Lo1
Remote_2 Fa0/0 10.10.10.2 255.255.255.248
Lo0
Lo1
Step 3 Verify the configurations.
Instructor’s Initial ______
7/16/2019 27405147 Exploration Routing OSPF Skills Based Assessment
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CCNA ExplorationRouting Protocols and Concepts Exploration Routing: OSPF Skills Based Assessment
All contents are Copyright © 1992 –2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 3 of 4
Task 3: Basic OSPF Configuration.
Step 1 Configure OSPF on each router.
Use Process ID 1and advertise all directly connected networks in OSPF Area 0. Do not advertise theloopback interface on the ISP router.
Step 2 Verify the OSPF configuration.
Confirm that each router has formed an adjacency with one another and has a path to each network in thetopology.
Instructor’s Initial ______
Task 4: Confirm OSPF Priorities.
Step 1: Verify the OSPF priorities.
Confirm that the DR/BDR election took place and that the Remote_2 router is the DR, Remote_1 is theBDR and the ISP router is the DROTHER.
Step 2: Configure the ISP router with the highest possible OSPF priority.
Step 3: Assure that the Remote_2 router will never take place in the DR/BDR election process.
Step 4: Reboot the switch using the reload command to force the OSPF election process.
Step 5: Verify that the OSPF election has occurred.
Confirm that the ISP router is now the DR, the Remote_1 router is the BDR and the Remote_2 router is nowthe DROTHER.
Instructor’s Initial ______
Task 5: Configure OSPF Cost.
Step 1: Set the cost on the Remote_2 WAN link to a value of 1.
Step 2: Set the cost of the ISP WAN link to a value of 100.
Step 3: Verify the cost in the routing table.
Instructor’s Initial ______
7/16/2019 27405147 Exploration Routing OSPF Skills Based Assessment
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CCNA ExplorationRouting Protocols and Concepts Exploration Routing: OSPF Skills Based Assessment
All contents are Copyright © 1992 –2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 4 of 4
Task 6: Verify OSPF Operation.
Step 1: Verify neighbor adjacencies.
Step 2: Verify that all networks are present in the routing table.
Instructor’s Initial ______
Task 7: Static Default Route
Step 1: Configure a static default route on the ISP router.
Step 2: Propagate the static default route to the other routers in the network.
Step 3: Verify that each router can see the static default route in their routing table.
Instructor’s Initial ______
Task 8: Verify Connectivity
Step 1 Ping the loopback interface on the ISP router from the Remote_1 and Remote_2 routers.
Instructor’s Initial ______