What’s new in MACsec: setting up MACsec using wpa_supplicant and (optionally) NetworkManager
A few months ago, on this blog, we talked about MACsec. In this post, I want to introduce the work we’ve done since then. Since that work revolves around methods to configure MACsec, this will also act as a guide to configure it by two methods: wpa_supplicant alone, or NetworkManager with wpa_supplicant.
If you read the previous MACsec post, you probably thought that this whole business of generating keys and creating “secure associations” isn’t very convenient, especially given that you then have to monitor your associations and generate new keys manually. And you’re right: it’s not.
Besides, if you run RHEL or Fedora, you’re probably used to configuring your network with NetworkManager, so you would expect to be able to configure MACsec with NetworkManager as well. We’re going to describe this below. First, let’s go a little bit behind the scenes.
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