How Does a Firewall Filter Work?

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In this video, CBT Nuggets trainer Knox Hutchinson covers what a firewall filter is actually doing as it protects your data plane.
A firewall filter looks and feels a lot like a route policy, but there are key differences. Watch Knox walk you through building a firewall filter from scratch - as he does, he points out how it differs from a route policy and how a firewall filter keeps your network safe and secure.
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[@Hartley94]

Thank you.

[@maxiyegela3293]

i really like your teachings, big fun of yours!! @knox

[@mainnevent515]

Can you filter out ICMP traffic?

[@cbtnuggets]

Hi Joshua, you can filter out ICMP traffic.
From a firewall, you can block any protocol. You'll need to know the name or port used. ICMP has some behaviors that an attacker can use to determine whether or not a device lives at the pinged IP address. There are also many different types of scans that can reveal information about a target. A simple ping is one of them and you can block those requests/responses. Hope that helps!

[@mainnevent515]

@@cbtnuggets your guys are an asset to society 👍