# N4N042: Meet MACsec

An episode of [N Is For Networking](https://invisiblenetwork.ai/podcast/1772772350), 6 Nov 2025, 52 min.

Audio: https://feeds.packetpushers.net/link/24045/17204443/N4N042.mp3

MACsec is a protocol for encrypting Ethernet frames on a local (though not always local) network. Ethan Banks and Holly Metlitzky have an ELI5 (explain like I’m 5) discussion as to what exactly is MACsec and how it differs from IPsec. They talk about when and whether you need to implement MACsec with all the... Read more »

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