Upload
seth-perkins
View
48
Download
3
Embed Size (px)
DESCRIPTION
CCNA 2 v3.0 Module 11 Access Control Lists (ACLs). Purpose of This PowerPoint. This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.0. It was created to give instructors a PowerPoint to take and modify as their own. This PowerPoint is: - PowerPoint PPT Presentation
Citation preview
222© 2003, Cisco Systems, Inc. All rights reserved.
Purpose of This PowerPoint
• This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.0.
• It was created to give instructors a PowerPoint to take and modify as their own.
• This PowerPoint is:
NOT a study guide for the module final assessment.
NOT a study guide for the CCNA certification exam.
• Please report any mistakes you find in this PowerPoint by using the Academy Connection Help link.
333© 2003, Cisco Systems, Inc. All rights reserved.
To Locate Instructional Resource Materials on Academy Connection:
• Go to the Community FTP Center to locate materials created by the instructor community
• Go to the Tools section
• Go to the Alpha Preview section
• Go to the Community link under Resources
• See the resources available on the Class home page for classes you are offering
• Search http://www.cisco.com
• Contact your parent academy!
444© 2003, Cisco Systems, Inc. All rights reserved.
Objectives
Access control list fundamentals
Access control lists (ACLs)
555© 2003, Cisco Systems, Inc. All rights reserved.
What are ACLs?
• ACLs are lists of instructions you apply to a router's interface to tell the router what kinds of packets to accept and what kinds to deny.
101010© 2003, Cisco Systems, Inc. All rights reserved.
Verifying ACLs
• There are many show commands that will verify the content and placement of ACLs on the router.
show ip interface
show access-lists
Show running-config
141414© 2003, Cisco Systems, Inc. All rights reserved.
Placing ACLs
• Standard ACLs should be placed close to the destination.
• Extended ACLs should be placed close to the source.
151515© 2003, Cisco Systems, Inc. All rights reserved.
Firewalls
A firewall is an architectural structure that exists between the user and the outside world to protect the internal network from intruders.