4.2.1 Packet Tracer – Troubleshoot EIGRP for IPv4 Answers

Last Updated on February 27, 2021 by Admin

4.2.1 Packet Tracer – Troubleshoot EIGRP for IPv4 Answers

Packet Tracer – Troubleshoot EIGRP for IPv4 (Answers Version)

Answers Note: Red font color or gray highlights indicate text that appears in the instructor copy only.

Addressing Table

Device

Interface

IP Address

Subnet Mask

Default Gateway

R1

G0/0

172.31.10.1

255.255.255.0

N/A

R1

S0/0/0

172.31.40.225

255.255.255.252

N/A

R1

S0/0/1

172.31.40.233

255.255.255.252

N/A

R2

G0/0

172.31.20.1

255.255.255.0

N/A

R2

S0/0/0

172.31.40.226

255.255.255.252

N/A

R2

S0/0/1

172.31.40.229

255.255.255.252

N/A

R2

S0/1/0

209.165.201.1

255.255.255.224

N/A

R3

G0/0

172.31.30.1

255.255.255.0

N/A

R3

S0/0/0

172.31.40.234

255.255.255.252

N/A

R3

S0/0/1

172.31.40.230

255.255.255.252

N/A

PC1

NIC

172.31.10.10

255.255.255.0

172.31.10.1

PC2

NIC

172.31.20.10

255.255.255.0

172.31.20.1

PC3

NIC

172.31.30.10

255.255.255.0

172.31.30.1

Scenario

In this activity, you will troubleshoot EIGRP neighbor issues. Use show commands to identify errors in the network configuration. Then, you will document the errors you discover and implement an appropriate solution. Finally, you will verify that full end-to-end connectivity is established.

Troubleshooting Process

  1. Use testing commands to discover connectivity problems in the network and document the problem in the Documentation Table.
  2. Use verification commands to discover the source of the problem and devise an appropriate solution to implement. Document the proposed solution in the Documentation Table.
  3. Implement each solution one at a time and verify if the problem is resolved. Indicate the resolution status in the Documentation Table.
  4. If the problem is not resolved, it may be necessary to first remove the implemented solution before returning to Step 2.
  5. After all identified problems are resolved, test for full end-to-end connectivity.

Documentation Table

Device

Identified Problem

Proposed Solution

Resolved?

R1

Has not established any adjacencies

Remove EIGRP 11 and configure EIGRP 1, advertise the directly connected networks and passive-interface g0/0 and disable automatic summarization.

R2

Is not forming an adjacency with R3.

Advertise the 172.31.40.228/30 network

R3

Is performing automatic summarization

Disable automatic summarization using the no auto-summary EIGRP subcommand

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