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Topics: Router, IP address, Subnetwork Pages: 6 (533 words) Published: October 3, 2013
PT Activity 6.3.3: Troubleshooting Inter-VLAN Routing
Topology Diagram

Addressing Table
Device

Interface

IP Address

Subnet Mask

Default Gateway

Fa0/1.10

172.17.10.1

255.255.255.0

N/A

Fa0/1.30

172.17.30.1

255.255.255.0

N/A

PC1

NIC

172.17.10.10

255.255.255.0

172.17.10.1

PC3

NIC

172.17.30.10

255.255.255.0

172.17.30.1

R1

Learning Objectives


Test connectivity between PCs and a router



Gather data on the problem



Implement the solution and test connectivity

Introduction
In this activity, you will troubleshoot connectivity problems between PC1 and PC3. The activity is complete when you achieve 100% and the two PCs can ping each other. Any solution you implement must conform to the topology diagram.

Task 1: Test Connectivity between PCs and a Router
All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.

Page 1 of 3

CCNA Exploration
LAN Switching and Wireless: Inter-VLAN Routing

PT Activity 6.3.3: Troubleshooting Inter-VLAN Routing

Use the Add Simple PDU tool to ping between two PCs on the same VLAN. The following tests should be successful at the conclusion of this activity:


PC1 can ping R1



PC3 can ping R1



PC1 can ping PC3

Can PC1 ping R1? ___________
Can PC3 ping R1? ___________

Can PC1 ping PC3? ___________
Task 2: Gather Data on the Problem
Step 1. Verify the configuration on the PCs.
Are the following configurations for each PC correct?


IP address



Subnet mask



Default gateway

Step 2. Verify the configuration on S1.
Are the configurations on the switch correct? Be sure to verify the following: •

Ports assigned to the correct VLANs



Ports configured for the correct mode



Ports connected to the correct device

Step 3. Verify the configuration on R1.
Are the configurations on the router correct? Be sure to verify the following: •

IP addresses



Interface status



Encapsulation and VLAN assignment

Step 4. Document the problem and suggest solutions.
What are the reasons why connectivity failed between the PCs? What are the solutions? There could be more than one problem and more than one solution. All solutions must conform to the topology diagram. PC1 and/or PC3

Problem: ___________________________________________________________________________ Solution: ___________________________________________________________________________ S1
Problem: ___________________________________________________________________________ Solution: ___________________________________________________________________________

All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.

Page 2 of 3

CCNA Exploration
LAN Switching and Wireless: Inter-VLAN Routing

PT Activity 6.3.3: Troubleshooting Inter-VLAN Routing

R1
Problem: ___________________________________________________________________________ Solution: ___________________________________________________________________________

Task 3: Implement the Solution and Test Connectivity
Step 1. Make changes according to the suggested solutions in Task 2. Note: If you make changes to the switch configuration, you should make the changes in Realtime mode rather than Simulation mode. This is necessary so that the switch port will proceed to the forwarding state.

Step 2. Test connectivity between PCs and R1.
If you change any IP configurations, you should create new pings because the prior pings use the old IP address.


PC1 should be able to ping R1



PC3 should be able to ping R1



PC1 should be able to ping PC3

Can PC1 ping R1? ___________
Can PC3 ping R1? ___________
Can PC1 ping PC3? __________
If any pings fail, return to Task 2 to continue troubleshooting. Step 3. Check completion percentage.
Your completion percentage...
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