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CCNA 7 Exam Answers 2023

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7.2.3.3 Packet Tracer – Configuring an ACL on VTY Lines

Posted on March 19, 2018March 23, 2018 By Admin

Last Updated on March 23, 2018 by Admin

7.2.3.3 Packet Tracer – Configuring an ACL on VTY Lines

  • 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 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 Exam Chapter 7 Exam Chapter 7 Exam Online Test
Next Chapter
Chapter 8 Exam Chapter 8 Exam Chapter 8 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 – Configuring an IPv4 ACL on VTY Lines (Answer Version)

Answer Note: Red font color or Gray highlights indicate text that appears in the Answer copy only.

Topology

7.2.3.3 Packet Tracer – Configuring an ACL on VTY Lines
7.2.3.3 Packet Tracer – Configuring an ACL on VTY Lines

Addressing Table

Device Interface IP Address Subnet Mask Default Gateway
Router F0/0 10.0.0.254 255.0.0.0 N/A
PC NIC 10.0.0.1 255.0.0.0 10.0.0.254
Laptop NIC 10.0.0.2 255.0.0.0 10.0.0.254

Objectives

Part 1: Configure and Apply an ACL to VTY Lines

Part 2: Verify the ACL Implementation

Background

As network administrator, you must have remote access to your router. This access should not be available to other users of the network. Therefore, you will configure and apply an access control list (ACL) that allows PC access to the Telnet lines, but denies all other source IP addresses.

Part 1: Configure and Apply an ACL to VTY Lines

Step 1:  Verify Telnet access before the ACL is configured.

Both computers should be able to Telnet to the Router. The password is cisco.

Step 2: Configure a numbered standard ACL.

Configure the following numbered ACL on Router.

Router(config)# access-list 99 permit host 10.0.0.1

Because we do not want to permit access from any other computers, the implicit deny property of the access list satisfies our requirements.

Step 3: Place a named standard ACL on the router.

Access to the Router interfaces must be allowed, while Telnet access must be restricted. Therefore, we must place the ACL on Telnet lines 0 through 4. From the configuration prompt of Router, enter line configuration mode for lines 0 – 4 and use the access-class command to apply the ACL to all the VTY lines:

Router(config)# line vty 0 15

Router(config-line)# access-class 99 in

Part 2: Verify the ACL Implementation

Step 1:  Verify the ACL configuration and application to the VTY lines.

Use the show access-lists to verify the ACL configuration. Use the show run command to verify the ACL is applied to the VTY lines.

Step 2: Verify that the ACL is working properly.

Both computers should be able to ping the Router, but only PC should be able to Telnet to it.

  • 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 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 Exam Chapter 7 Exam Chapter 7 Exam Online Test
Next Chapter
Chapter 8 Exam Chapter 8 Exam Chapter 8 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
Uncategorized

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