Access Control Lists (ACLs)

Access Control Lists (ACLs) are very powerful security feature of Cisco IOS. Access Control Lists (ACLs) are used to permit or deny access between networks, based on conditions like source IP address, destination IP Address, source TCP/UDP port number, destination TCP/UDP port number etc.

Access Control Lists (ACL) topics are a part of CCNA Routing and Switching exam also. Please find below important Access Control Lists (ACL) exam topics which are required for CCNA Security examination.

Introduction to Access Control Lists (ACL)

Standard Access Control Lists (ACLs)

Where should a Standard Access Control List (ACL) be placed

Access Control List (ACL) - Wildcard Masks

How to create and configure Standard Access Control Lists (ACLs)

Extended Access Control Lists (ACLs)

Where should an Extended Access Control List (ACL) be placed

Extended Access Control List (ACL) - Operators

Extended Access Control List (ACL) - TCP and UDP port numbers and names

Extended Access Control List (ACL)- established Keyword

How to create and configure Extended Access Control Lists (ACLs)

How to create and configure Access Control Lists (ACLs) for vty lines (telnet and ssh)