E-Lab 4.2.5 - Alternate Connectivity Tests - Ping
This lab uses the ping command to send ICMP datagrams to a target host.
Using the information retrieved, accomplish the following tasks:
- Verify that the network layer between source and destination is working properly.
- Evaluate the path-to-host reliability.
- Determine delays over the path and whether the host can be reached or is functioning.
Use the extended ping command to increase the number of packets.
Step 1
Enter privileged EXEC mode.
Step 2
Test connectivity between Dakar and Nouakchott by pinging 192.168.15.2.
Step 3
Display information about host to Layer 3 address mappings.
Step 4
Try to ping the first address listed in the output of show host.
Step 5
Try to ping the third address listed in the output of show host.
Step 6
Now try to ping from workstation A to Dakar's serial interface.
Step 7
Telnet into Dakar (use the address on Dakar fastethernet interface).
Step 8
Login to the router using the password cisco.
Step 9.1
This is the Dakar router.
Enter privileged EXEC mode.
Step 9.2
Perform an extended ping.
Step 10
Use the keyword ip to specify IP information and press Enter.
Step 11
Enter the IP address of Nouakchott FastEthernet interface.
Step 12
Enter a repeat count of 5.
Step 13
Enter 100 as the datagram size.
Step 14
Enter a 3 second timeout.
Step 15
To skip extended commands type the letter n.
Step 16
To keep the datagram size the same for each successive ping attempt, type the letter n.
Step 17
Perform an extended ping from the workstation to Dakar serial interface.
Use a repeat count of 25 echoes.