An ACL is a sequential collection of permit and deny conditions that apply to packets.
ACLs can filter traffic as it passes through a switch and permit or deny packets from crossing specified interfaces. Packet filtering can limit network traffic and restrict network use by certain users or devices. To use this wizard, you must know how the network is designed and how interfaces are used on the filtering device. You can choose whether to drop or forward packets that meet the filtering criteria. Filtering can be based on network addresses or TCP/UDP applications. You can also use the security wizard to filter inbound traffic on the Catalyst 2950 switches. You can configure network security by using ACLs by either using the Cluster Management Suite (CMS) or through the command-line interface (CLI).
So to assist you, below we will discuss Access Control Lists.
In preparation of our CCNA exam, we want to make sure we cover the various concepts that we could see on our Cisco CCNA exam.
