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An access control list (ACL) is an ordered list of rules used to filter traffic. Each rule states what’s permitted or what’s denied.
Course Description
CCNA 200-301 – Standard Firewall is an ordered list of rules used to filter traffic. Each rule states what’s permitted or what’s denied.
You can secure a Cisco router using Access Control Lists (ACLs) to :
- Filter traffic and control which users or systems can access the network.
- Block or allow traffic on interfaces, and to control which types of traffic are forwarded.



