Several drivers exist by default, and provide core networking functionality: bridge: The default network driver. If you don’t specify a driver, this is the type of network you are creating. Bridge networks are usually used when your applications run in standalone containers that need to communicate. See bridge networks.
In addition to backing up to the paid crashplan central, I want my stuff to get backed up locally on my unraid network share: "After much screwing around I was finally able to get Crashplan to back up to the unRAID box via Network Share. Out of the box Crashplan won't back up to a network share saying it doesn't have the correct permissions.