ETP Client 4.3 for macOS is now available for upgrade or deployment. With this update, you can use ETP Client as a transparent proxy on macOS. When the Transparent Traffic Interception client configuration setting is enabled with the full web proxy, ETP Client uses the Apple Network Extension framework to intercept and capture traffic without modifying browser or operating system settings. ETP Client then directs DNS traffic to SIA resolvers and web traffic to SIA Proxy for scanning.
To use version 4.3 of the client, after installing or upgrading, you must allow ETP Client extensions. You can do this by accessing the Security & Privacy system preferences. In the General tab, click Allow for the ETP Client extensions. You can also open ETP Client and click Install Extensions.
The transparent traffic interception feature is currently in beta.