20.3.6 Packet Tracer – Use the ping Command Answers
Packet Tracer – Use the ping Command (Answers Version)
Answers Note: Red font color or gray highlights indicate text that appears in the Answers copy only.
Objectives
Use the ping command to identify an incorrect configuration on a PC.
Background / Scenario
A small business owner learns that some users are unable to access a website. All PCs are configured with static IP addressing. Use the ping command to identify the issue.
Instructions
Part 1: Verify connectivity.
Access the Desktop tab > Web Browser of each PC and enter the URL www.cisco.pka. Identify any PCs that are not connecting to the web server.
Note: All the devices require time to complete the boot process. Please allow up to one minute before receiving a web response.
Question:
Which PCs are unable to connect to the web server?
Type your answers here.
PC2
Part 2: Ping the web server from PC with connectivity issues.
- On the PC, access the Command Prompt from the Desktop tab.
- At the prompt, enter ping www.cisco.pka.
Question:
Did the ping return a reply? What is the IP address displayed in the reply, if any?
Type your answers here.
There was no reply. No IP address was displayed in the message.
Part 3: Ping the web server from correctly configured PCs.
- On the PC, access the Command Prompt from the Desktop tab.
- At the prompt, enter ping www.cisco.pka.
Question:
Did the ping return a reply? What is the IP address returned, if any?
Type your answers here.
Reply was returned with 192.15.2.10 as the IP address for www.cisco.pka.
Part 4: Ping the IP address of the web server from PCs with connectivity issues.
- On the PC, access the Command Prompt from the Desktop tab.
- Attempt to reach the IP address of the web server with the ping command.
Did the ping return a reply? If so, then the PC can reach the web server via IP address, but not domain name. This could indicate a problem with the DNS server configuration on the PC.
Part 5: Compare the DNS server information on the PCs.
- Access the Command Prompt of the PCs without any issues.
- Using the command ipconfig /all, examine the DNS server configuration on the PCs without any issues.
- Access the Command Prompt of the PCs with connectivity issues.
- Using the command ipconfig /all, examine the DNS server configuration on the PCs with misconfigurations. Do the two configurations match?
Part 6: Make any necessary configuration changes on the PCs.
- Navigate to the Desktop tab of the PCs with issues, make any necessary configuration changes in IP Configuration.
- Using the Web Browser within the Desktop tab, connect to www.cisco.pka to verify that the configuration changes resolved the problem.