Shows the bridge, host, null, and overlay drivers.

docker info

returns:

Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 0
Server Version: 1.12.3
Storage Driver: aufs
...
Plugins:
 Volume: local
 Network: bridge host null overlay    <<<<<<<<
Swarm: inactive
Runtimes: runc
...