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7.1.1.4 Packet Tracer – ACL Demonstration - CCNA v6.0 Exam 2019

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08/10/2019
7.1.1.4 Packet Tracer – ACL Demonstration - CCNA v6.0 Exam 2019
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7.1.1.4 Packet Tracer – ACL
Demonstration
Posted on March 19, 2018 by Admin
7.1.1.4 Packet Tracer – ACL
Demonstration
 Recommend
From year to year, Cisco has updated many versions with
difference questions. The latest version is version 6.0 in
2018. What is your version? It depends on your instructor
creating your class. We recommend you to go thought all
version if you are not clear. While you take online test
with netacad.com, You may get random questions from
all version. Each version have 1 to 10 different questions
or more. After you review all questions, You should
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7.1.1.4 Packet Tracer – ACL Demonstration - CCNA v6.0 Exam 2019
practice with our online test system by go to "Online
Test" link below.
Version 5.02 Version 5.03 Version 6.0
Online
Assessment
Chapter 7
Chapter 7
Chapter 7
Exam
Exam
Exam
Online Test
Next Chapter
Chapter 8
Chapter 8
Chapter 8
Exam
Exam
Exam
Online Test
Lab Activities
7.1.1.4 Packet Tracer – ACL Demonstration
7.2.1.6 Packet Tracer Configuring Numbered Standard
IPv4 ACLs
7.2.1.7 Packet Tracer – Configuring Named Standard
IPv4 ACLs
7.2.3.3 Packet Tracer – Configuring an ACL on VTY
Lines
7.3.2.4 Packet Tracer – Troubleshooting Standard IPv4
ACLs
7.4.1.2 Packet Tracer – Skills Integration Challenge
Packet Tracer – Access Control List
Demonstration (Answer Version)
Answer Note: Red font color or Gray highlights indicate text that
appears in the Answer copy only.
Topology
7.1.1.4 Packet Tracer – ACL Demonstration
7.1.1.4 Packet Tracer – ACL Demonstration
Objectives
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7.1.1.4 Packet Tracer – ACL Demonstration - CCNA v6.0 Exam 2019
Part 1: Verify Local Connectivity and Test Access
Control List
Part 2: Remove Access Control List and Repeat Test
Background
In this activity, you will observe how an access control list
(ACL) can be used to prevent a ping from reaching hosts on
remote networks. After removing the ACL from the
configuration, the pings will be successful.
Part 1: Verify Local Connectivity and Test Access
Control List
Step 1: Ping devices on the local network to verify
connectivity.
a. From the command prompt of PC1, ping PC2.
b. From the command prompt of PC1, ping PC3.
Why were the pings successful? Because layer 1 through 3
are fully functional and there is no policy currently filtering
ICMP messages between the two local networks.
Step 2: Ping devices on remote networks to test ACL
functionality.
a. From the command prompt of PC1, ping PC4.
b. From the command prompt of PC1, ping the DNS Server.
Why did the pings fail? (Hint: Use simulation mode or view
the router configurations to investigate.) The pings fail
because R1 is configured with an ACL to deny any ping
from exiting the serial 0/0/0 interface.
Part 2: Remove ACL and Repeat Test
Step 1: Use show commands to investigate the ACL
configuration.
a. Use the show run and show access-lists commands to
view the currently configured ACLs. To quickly view the
current ACLs, use show access-lists. Enter the show
access-lists command, followed by a space and a
question mark (?) to view the available options:
R1#show access-lists ?
<1-199> ACL number
WORD ACL name
<cr>
If you know the ACL number or name, you can filter
the show output further. However, R1 only has one
ACL; therefore, the show access-lists command will
suffice.
R1#show access-lists
Standard IP access list 11
10 deny 192.168.10.0 0.0.0.255
20 permit any
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7.1.1.4 Packet Tracer – ACL Demonstration - CCNA v6.0 Exam 2019
The first line of the ACL prevents any packets
originating in the 192.168.10.0/24 network, which
includes Internet Control Message Protocol (ICMP)
echoes (ping requests). The second line of the ACL
allows all other ip traffic from any source to transverse
the router.
b. For an ACL to impact router operation, it must be applied
to an interface in a specific direction. In this scenario, the
ACL is used to filter traffic exiting an interface. Therefore,
all traffic leaving the specified interface of R1 will be
inspected against ACL 11.
Although you can view IP information with the show ip
interface command, it may be more efficient in some
situations to simply use the show run command.
Using one or both of these commands, to which
interface and direction is the ACL applied? Serial
0/0/0, outgoing traffic.
Step 2: Remove access list 11 from the configuration
You can remove ACLs from the configuration by issuing the
no access list [number of the ACL] command. The no
access-list command deletes all ACLs configured on the
router. The no access-list [number of the ACL] command
removes only a specific ACL.
a. Under the Serial0/0/0 interface, remove access-list 11
previously applied to the interface as an outgoing filter:
R1(config)# int se0/0/0
R1(config-if)#no ip access-group 11 out
b. In global configuration mode, remove the ACL by entering
the following command:
R1(config)# no access-list 11
c. Verify that PC1 can now ping the DNS Server and PC4.
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 Recommend
From year to year, Cisco has updated many versions with
difference questions. The latest version is version 6.0 in
https://www.ccna7.com/7-1-1-4-packet-tracer-acl-demonstration/
4/6
08/10/2019
7.1.1.4 Packet Tracer – ACL Demonstration - CCNA v6.0 Exam 2019
2018. What is your version? It depends on your instructor
creating your class. We recommend you to go thought all
version if you are not clear. While you take online test
with netacad.com, You may get random questions from
all version. Each version have 1 to 10 different questions
or more. After you review all questions, You should
practice with our online test system by go to "Online
Test" link below.
Version 5.02 Version 5.03 Version 6.0
Chapter 7
Chapter 7
Chapter 7
Exam
Exam
Exam
Online
Assessment
Online Test
Next Chapter
Chapter 8
Chapter 8
Chapter 8
Exam
Exam
Exam
Online Test
Lab Activities
7.1.1.4 Packet Tracer – ACL Demonstration
7.2.1.6 Packet Tracer Configuring Numbered Standard
IPv4 ACLs
7.2.1.7 Packet Tracer – Configuring Named Standard
IPv4 ACLs
7.2.3.3 Packet Tracer – Configuring an ACL on VTY
Lines
7.3.2.4 Packet Tracer – Troubleshooting Standard IPv4
ACLs
7.4.1.2 Packet Tracer – Skills Integration Challenge
Suggested Scoring Rubric
Question Location
Possible Points
Part 1, Step 1 b.
50
Part 1, Step 2 b.
40
Part 2, Step 2 b.
10
Total Score
100
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7.1.1.4 Packet Tracer – ACL Demonstration - CCNA v6.0 Exam 2019
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