What is an Access Control List (ACL)? An access control list is a set of rules or conditions defined on a network device, such as a router or firewall. ACLs are instrumental in managing and securing data flow within a network.
CBT Nuggets trainer Keith Barker gives a big-picture look at many functions an Access Control List (ACL) may be used for, which includes packet filtering, Network Address Translation (NAT) configuration, QoS, and more.