CCNA 2 Module 4 Challenge Lab #2
Objective
•
Verify the network layer is operational using the ping command.
•
Extend the ping command from a workstation and a router by making use of available options.
•
Use traceroute and tracert commands to verify the path and to determine delays over the path
from source to destination.
•
Establish, suspend and reestablish Telnet sessions.
•
Display and disconnect an active Telnet session.
Step 1 Cable and Configure the Topology
a. Cable the lab according to the topology.
b. Configure the routers with basic router configurations according to your instructor’s specifications.
Make sure the exec-timeout 0 0 command is entered under all line vty configurations.
c.
Configure routing using RIP as the routing protocol.
d. Use the show ip route command to verify that all routers have five routes in the routing table.
e. Fill in the table below with appropriate workstation configuration information.
Configuration Information
Workstation 1
Workstation 2
Workstation 3
IP Address
Subnet Mask
Default Gateway
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CCNA 2: Routers and Routing Basics v 3.x – Module 4 Challenge Lab #2
Copyright © 2006, Cisco Systems, Inc.
f.
Configure each workstation with your assigned IP address, subnet mask, and default gateway from
Step e. above.
Step 2 Verify network layer connectivity
a. From WK1, ping WK3. Successful? _______ If not, troubleshoot.
b. From WK1, ping WK2. Successful? _______ If not, troubleshoot.
c.
From WK2, ping WK3. Successful? _______ If not, troubleshoot.
d. Why is it unnecessary to verify that WK3 can ping WK2 or WK1?
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
e. From WK1, use ping options to continuously send ping packets to WK3 until stopped by you. (Hint:
At the DOS prompt, type ping and then hit enter to see a list of options).
What command did you use?
________________________________________________________________________________
How did you stop the ping packets?
________________________________________________________________________________
f.
From WK1, use ping options to specify 100 packets should be sent to WK3.
What command did you use?
________________________________________________________________________________
g. From the GAD router, send 100 ping packets to the Ethernet interface attached to PHX. Use the
Ethernet interface attached to GAD as the source IP address.
How would you complete the above instruction?
________________________________________________________________________________
________________________________________________________________________________
Why would you want to change the source IP address when pinging a destination IP address?
________________________________________________________________________________
________________________________________________________________________________
Step 3 Verify the path from source to destination
a. From GAD discover the path packets take to reach WK3.
What command did you use?
________________________________________________________________________________
Record the path and delays below:
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
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CCNA 2: Routers and Routing Basics v 3.x – Module 4 Challenge Lab #2
Copyright © 2006, Cisco Systems, Inc.
b. From WK1, discover the path packets take to reach WK3
What command did you use?
________________________________________________________________________________
How many hops did it take? _________________________________________________________
Record the path and delays below:
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Step 4 Advanced telnet operations
a. Before proceeding, make sure all telnet sessions, if any, are closed on all routers.
What command, entered on each router, would verify that all telnet sessions are closed?
________________________________________________________________________________
b. From GAD, telnet to PHX and then suspend the telnet session.
What key combination suspends a telnet session?
________________________________________________________________________________
c.
From GAD, telnet to PHX a second time and then suspend the telnet session.
d. From GAD, telnet to PHX a third time and then suspend the telnet session.
e. From GAD, telnet to PHX a fourth time and then suspend the telnet session.
f.
From GAD, telnet to PHX a fifth time and then suspend the telnet session.
g. From GAD, attempt to telnet PHX a sixth time.
What message did you receive?
________________________________________________________________________________
Why did you receive this message?
________________________________________________________________________________
h. From GAD, attempt to telnet to BHM.
Was your attempt successful? _______________________________________________________
Why or why not?
________________________________________________________________________________
i.
Make sure you are at the GAD router prompt (Suspend any telnet session currently active, if
necessary). Enter the command to display all telnet sessions.
What command did you use?
________________________________________________________________________________
You should have six sessions currently active. If not, then you either did not configure the exectimeout 0 0 command as instructed in Step 1 or you did not complete all the sub steps under
Step 4 above correctly. Troubleshoot and repeat Step 4 from the beginning.
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CCNA 2: Routers and Routing Basics v 3.x – Module 4 Challenge Lab #2
Copyright © 2006, Cisco Systems, Inc.
j.
If you hit the Enter key at the GAD command prompt, what telnet session will be resumed? ______
How can you tell from the output from the command enter in sub step i which session will be
resumed?
________________________________________________________________________________
k.
If you hit the Enter key in the sub step above, suspend the telnet session back to GAD. From the
GAD router prompt, resume the third telnet session with PHX.
What command did you use?
________________________________________________________________________________
End this telnet session with PHX by entering a command at the PHX prompt.
What command did you use?
________________________________________________________________________________
l.
From the GAD router prompt, end all telnet sessions currently open.
What command do you use to end telnet sessions?
________________________________________________________________________________
m. Verify that all sessions are end.
What command did you use?
________________________________________________________________________________
Step 5 Finalize documentation and restore equipment configurations
a. Capture the configuration of all three routers. Clean the scripts, print the scripts and attach the
scripts to this lab document to turn into your instructor
b. Erase and reload the routers.
c.
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Remove the workstation configurations.
CCNA 2: Routers and Routing Basics v 3.x – Module 4 Challenge Lab #2
Copyright © 2006, Cisco Systems, Inc.