From the course: Cisco Networking Foundations: Wireless Networks, Services, Security, and Virtualization

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Standard numbered ACL theory

Standard numbered ACL theory

From the course: Cisco Networking Foundations: Wireless Networks, Services, Security, and Virtualization

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Standard numbered ACL theory

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- [Instructor] Let's take a closer look now at a standard numbered access control list. First, recall that a standard ACL is only going to be matching source IP address information. There's no mention of the destination, there's no mention of specific port numbers. It's going to be all traffic within a protocol suite, and the only protocol suite we're focusing on is IP, meaning that a standard ACL is going to permit or deny all IP traffic coming from a source. And to indicate that this numbered ACL is a standard ACL as opposed to, for example, an extended ACL, that number needs to be in a specific range. We typically use a number in the range of 1 through 99, but if we happen to run out of those, which is not likely, but if we do run out of those, we could use numbers in the range of 1300 through 1999. And even though we're going to be focused in our next video on configuring a standard numbered ACL, just realize that a standard…

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