5.2.1.6 Packet Tracer Investigating Convergence Instructions

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Packet Tracer – Investigating Convergence
Topology

Addressing Table
Device

Interface

IP Address

Subnet Mask

Default Gateway

209.165.0.1

255.255.255.0

N/A

G0/1

64.100.0.1

255.0.0.0

N/A

S0/0/0

192.168.1.2

255.255.255.0

N/A

G0/0

10.0.0.1

255.0.0.0

N/A

S0/0/0

192.168.1.1

255.255.255.0

N/A

PC1

NIC

64.100.0.2

255.0.0.0

64.100.0.1

PC2

NIC

209.165.0.2

255.255.255.0

209.165.0.1

PC3

NIC

10.0.0.2

255.0.0.0

10.0.0.1

G0/0
R1

R2

Objectives
Part 1: View the Routing Table of a Converged Network
Part 2: Add a New LAN to the Topology
Part 3: Watch the Network Converge

Background
This activity will help you identify important information in routing tables and witness the process of network
convergence.

© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.

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Packet Tracer – Investigating Convergence

Part 1: View the Routing Table of a Converged Network
Step 1: Use show commands and interpret the output.
2
a. Show the directly connected networks of R1. How many routes are connected to R1? ____________

R1# show ip route connected
RIP
b. Show the running configuration of R1. What routing protocol is in use? ____________

c.

NO
Are the IP addresses in the configuration advertised by RIP the same as those that are connected? ____

d. Are these IP addresses assignable, network, or broadcast? ____________
network
1
e. Show the networks of R1 learned through RIP. How many routes are there? ____________

R1# show ip route rip
f.

Show all of the networks that R1 has in its routing table. What do the leading letters represent?
L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
____________________________________________________________________________________
R1# show ip route

g. Repeat step 1, a to f on R2. Compare the output of the two routers.

Step 2: Verify the state of the topology.
a. Ping PC3 from PC2. The ping should be successful.
b. Show the interface status on R2. Two interfaces should have assigned addresses. Each address
corresponds to a connected network.
R2# show ip interface brief
c.

Show the interface status on R1. How many interfaces have assigned addresses? ____________
R1# show ip interface brief

Part 2: Add a New LAN to the Topology
Step 1: Add an Ethernet cable.
a. Connect the correct Ethernet cable from S1 to the appropriate port on R1.
b. Ping from PC1 to PC2 after the affected S1 port turns green. Was the ping successful? yes
____________
c.

Ping from PC1 to PC3. Was the ping successful? Why?

no,
because route was not defined
____________________________________________________________________________________

Step 2: Configure a route.
a. Switch from Realtime mode to Simulation mode.
b. Enter a new route on R1 for the 64.0.0.0 network.
R1(config)# router rip
R1(config-router)# network 64.0.0.0
c.

Examine the PDUs leaving R1. What type are they? ____________

© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.

Page 2 of 4

Packet Tracer – Investigating Convergence

Part 3: Watch the Network Converge
Step 1: Use debug commands.
a. Enable debugging on R2.
R2# debug ip rip
R2# debug ip routing
b. For reference, show the routing table of R2 as in step 1f.
c.

Click Capture / Forward from simulation mode. What notification appeared in the terminal of R2?
____________________________________________________________________________________

d. According to the debugging output, how many hops away from R2 is 64.0.0.0? ____________
e. What interface does R2 send packets destined for the 64.0.0.0 network? ____________
f.

Show the routing table of R2. Record the new entry.
____________________________________________________________________________________

Step 2: Verify the state of the topology.
Ping from PC1 to PC3. Was the ping successful? Why?
____________________________________________________________________________________

© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.

Page 3 of 4

Packet Tracer – Investigating Convergence

Suggested Scoring Rubric
Activity Section
Part 1: View the Routing
Table of a Converged
Network.

Question
Location

Possible
Points

Step 1-a

6

Step 1-b

6

Step 1-c

6

Step 1-d

6

Step 1-e

6

Step 1-f

6

Step 2-c

6

Part 1 Total
Part 2: Add a New LAN to
the Topology

Part 3: Watch the Network
Converge

42

Step 1-b

6

Step 1-c

6

Step 2-c

6

Part 2 Total

18

Step 1-c

6

Step 1-d

6

Step 1-e

6

Step 1-f

6

Step 2-a

6

Part 3 Total

30

Packet Tracer Score

10

Total Score

100

© 2018 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.

Earned
Points

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