P
Packet
T
Tracer
- Testing
g Connec
ctivity with
w
Trac
ceroute
T
Topology
O
Objectives
Part 1: Te
est End-to-End Connectivity with the
e tracert Com
mmand
Part 2: Co
ompare to th
he traceroute
e Command on
o a Router
B
Backgroun
nd
This activity is designe
ed to help you troubleshoott network con
nnectivity issues using com
mmands to trace the
m source to de
estination. Yo
ou are require
ed to examine
e the output off tracert (the Windows com
mmand)
route from
and trace
eroute (the IO
OS command)) as packets traverse
t
the network
n
and determine
d
the cause of a network
issue. Afte
er the issue is
s corrected, use
u the tracerrt and tracero
oute comman
nds to verify the
t completion.
P
Part
1: Test
T
End-to-End Connectiv
C
vity with the
t tracerrt Comma
and
S
Step
1: Send a ping frrom one end of the nettwork to the
e other end.
Click PC1
1 and open the Command Prompt. Ping PC3 at 10.1
1.0.2. What message
m
is displayed as a result of
the ping?
S
Step
2: Tra
ace the routte from PC1
1 to determine where in
n the path connectivity
c
y fails.
a. From the Comman
nd Prompt off PC1, enter the
t tracert 10
0.1.0.2 command.
b. When
n you receive the Requestt timed out message,
m
presss Ctrl+C. Wh
hat was the first IP addresss listed in
the tra
acert output?
?
© 2013 Cisco and
d/or its affiliates. All rights reserve
ed. This docume
ent is Cisco Public.
Page 1 of 3
Packet Tracer - Testing Connectivity with Traceroute
c.
Observe the results of the tracert command. What is the last address reached with the tracert
command?
Step 3: Correct the network problem.
a. Compare the last address reached with the tracert command with the network addresses listed on the
topology. The furthest device from the host 10.0.0.2 with an address in the network range found is the
point of failure. What devices have addresses configured for the network where the failure occurred?
b. Click RouterC and then the CLI tab.
c.
What is the status of the interfaces?
d. Compare the IP addresses on the interfaces with the network addresses on the topology. Does there
appear to be anything extraordinary?
e. Make the necessary changes to restore connectivity; however, do not change the subnets. What is
solution?
Step 4: Verify that end-to-end connectivity is established.
a. From the PC1 Command Prompt, enter the tracert 10.1.0.2 command.
b. Observe the output from the tracert command. Was the command successful?
Part 2: Compare to the traceroute Command on a Router
a. Click RouterA and then the CLI tab.
b. Enter the traceroute 10.1.0.2 command. Did the command complete successfully?
c.
Compare the output from the router traceroute command with the PC tracert command. What is
noticeably different about the list of addresses returned?
© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.
Page 2 of 3
Packet Tracer - Testing Connectivity with Traceroute
Suggested Scoring Rubric
Activity Section
Part 1: Test End-to-End
Connectivity with the tracert
Command
Question
Location
Possible
Points
Step 1
10
Step 2b
10
Step 2c
10
Step 3a
10
Step 3c
10
Step 3d
10
Step 3e
10
Step 4b
10
Part 1 Total
Part 2: Compare to the
traceroute Command on a
Router
80
a
10
b
10
Part 2 Total
20
Total Score
100
© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.
Earned
Points
Page 3 of 3