NetworkManager Now Supports Link-Local Thunderbolt Networking
In Summary : With the Linux 4.15 kernel there was the introduction of the Thunderbolt networking driver but support was still needed in use...
https://updatesinfosec.blogspot.com/2018/05/networkmanager-now-supports-link-local.html

With the Linux 4.15 kernel there was the introduction of the Thunderbolt networking driver but support was still needed in user-space for making this peer-to-peer Thunderbolt networking support a reality. Over the past month, NetworkManager has landed its support for Thunderbolt networking so that Linux to Linux/macOS/Windows systems can be connected via a Thunderbolt cable and allow for link-local addressing. Christian Kellner was involved with this process of fitting NetworkManager to support Thunderbolt networking and he's written on his blog about this upbringing. [...]
kindly refer the following link as follow up :
https://www.phoronix.com/scan.php?page=news_item&px=NetworkManager-Thunderbolt-Net