11.6.1b Packet Tracer – Configure OSPF on a Multiaccess Network Answers
Topology
| Device | Interface | IP Address | Subnet Mask | Default Gateway |
|---|---|---|---|---|
| R1 | Fa0/0 | 192.168.1.1 | 255.255.255.0 | N/A |
| Loopback1 | 192.168.31.11 | 255.255.255.255 | N/A | |
| R2 | Fa0/0 | 192.168.1.2 | 255.255.255.0 | N/A |
| Loopback1 | 192.168.31.22 | 255.255.255.255 | N/A | |
| R3 | Fa0/0 | 192.168.1.3 | 255.255.255.0 | N/A |
| Loopback1 | 192.168.31.33 | 255.255.255.255 | N/A |
Instructions:
Learn to Configure an OSPF Multiaccess Network.
Learning Objectives
- Cable a network according to the Topology Diagram
- Erase the startup configuration and reload a router to the default state
- Perform basic configuration tasks on a router
- Configure and activate interfaces
- Configure OSPF routing on all routers
- Configure OSPF router IDs
- Verify OSPF routing using show commands
- Configure a static default route
- Propagate default route to OSPF neighbors
- Configure OSPF Hello and Dead Timers
- Configure OSPF on a Multiaccess network
- Configure OSPF priority
- Understand the OSPF election process
- Document the OSPF configuration
Task 1: Basic Router Configurations
Perform basic configuration of the R1, R2, and R3 routers according to the following guidelines:
- Configure the router hostname
- Disable DNS lookup
- Configure the EXEC mode password as class
- Configure a message-of-the-day banner
- Configure a password for console connections as cisco (case sensitive)
- Configure a password for VTY connections as cisco (case sensitive)
Task 2: Configure and Activate Serial and Ethernet Addresses
Step 1 Configure the interfaces on the R1, R2, and R3 routers with the IP addresses from the table
Task 3: Configure OSPF on the DR Router
Step 1 Configure OSPF on R3.
Task 4: Configure OSPF on the BDR Router
Step 1 Configure OSPF on R2.
Task 5: Configure OSPF on the DRother Router
Step 1 Configure OSPF on R1.
Task 6: Use the OSPF Priority to Determine the DR and BDR
Step 1 Configure OSPF priority on R1 Fa0/0 as 255.
Step 2 Configure OSPF priority on R2 Fa0/0 as 0.
Step 3 Configure OSPF priority on R3 Fa0/0 as 100
Step 4 Next shut down Fa0/0 on each router in order to force an election.
