Encountered the following error when trying to setup private networking in vagrant:
Additionally, the call to private_network had to be changed to this:
The issue is discussed here, and this post helped me fix the issue. Basically, you have to check the contents of the file: /etc/udev/rules.d/70-persistent-net.rules. The safest bet seems to be to delete that file, so that vagrant can assign device names without MAC address issues. Thanks a lot, ablecoder!