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You're reading from  Implementing and Administering Cisco Solutions: 200-301 CCNA Exam Guide

Product typeBook
Published inNov 2020
PublisherPackt
ISBN-139781800208094
Edition1st Edition
Tools
Cisco UCS
Concepts
Network Security
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Author (1)
Glen D. Singh
Glen D. Singh
author image
Glen D. Singh

Glen D. Singh is a cybersecurity author, educator and SecOps professional. His areas of expertise are cybersecurity operations, offensive security tactics and techniques, and enterprise networking. He holds a Master of Science (MSc) in cybersecurity and many industry certifications from top awarding bodies such as EC-Council, Cisco, and Check Point. Glen loves teaching and mentoring others while sharing his wealth of knowledge and experience as an author. He has written many books, which focus on vulnerability discovery and exploitation, threat detection, intrusion analysis, incident response, network security, and enterprise networking. As an aspiring game changer, Glen is passionate about increasing cybersecurity awareness in his homeland, Trinidad and Tobago.
Read more about Glen D. Singh

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Working with standard ACLs

When creating a numbered standard ACL on a Cisco IOS router, the ACL must first be created on the device and then applied to an interface to filter traffic. Numbered standard ACLs use the following range of numbers:

  • 1 to 99
  • 1300 to 1999

To create a numbered standard ACL on a Cisco IOS router, use the global configuration command followed by a number within the range of 1 to 99 or 1300 to 1999 on the device. Therefore, with this range of numbers, there can be up to 798 unique standard ACLs on a single router.

Creating a numbered standard ACL

The following is the full syntax used to create a numbered standard ACL:

Router(config)# access-list access-list-number [ deny | permit | remark ] source [ source-wildcard ][ log ]

The remark command will allow you to insert a description for the ACL and the log command will generate a Syslog message when matches are found. Additionally, there can be more than one ACE within an ACL.

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Implementing and Administering Cisco Solutions: 200-301 CCNA Exam Guide
Published in: Nov 2020Publisher: PacktISBN-13: 9781800208094
© 2020 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Glen D. Singh

Glen D. Singh is a cybersecurity author, educator and SecOps professional. His areas of expertise are cybersecurity operations, offensive security tactics and techniques, and enterprise networking. He holds a Master of Science (MSc) in cybersecurity and many industry certifications from top awarding bodies such as EC-Council, Cisco, and Check Point. Glen loves teaching and mentoring others while sharing his wealth of knowledge and experience as an author. He has written many books, which focus on vulnerability discovery and exploitation, threat detection, intrusion analysis, incident response, network security, and enterprise networking. As an aspiring game changer, Glen is passionate about increasing cybersecurity awareness in his homeland, Trinidad and Tobago.
Read more about Glen D. Singh

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