MicroNugget: What is iACL?

In this video, Keith Barker covers infrastructure ACL and how it can help defend against bogus traffic before it enters your network. He’ll explain what an iACL is, what it’s used for, and how it can help you create a more secure network. You’ll also learn about some of the crucial elements of an iACL and how they work.

One of the challenges you’ll face as an IT pro is the likelihood of some random, unwelcome packets from the internet trying to make their way onto your network via the router.

One mechanism that you can use to reduce your exposure to bogus traffic is something called an Infrastructure Access Control List, or iACL. Keith will talk about several of the key elements that might comprise an iACL, such as using anti-spoofing entries, denying special-use address sources, and filtering RFC 1918 space as a source.

He’ll also discuss some of the driving reasons behind creating an iACL that go beyond merely reducing unwanted traffic.

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[mrpeterdrake]

Hi Keith! Thanks for another great video. I didn't know about the BGP black hole network address of 192.0.2.0/24. Something else for me to learn about!

[djcarlos]

All your micro nuggets and full series are cheerful, informative and most helpful. Currently doing CCNA security, thanks.