Help connecting with these steps

[AlexMarshall12]

Here is a list of the commands I run

    > cd ~/vagrant-test
    > vagrant init hashicorp/precise32
    # This gets created.
    
    > vagrant global-status
    af19297  default virtualbox running ~/vagrant-test      

Then in emacs

    C-x C-f /vagrant:af19297
    File not found and directory write-protected

I also try

    C-x C-f /vagrant:af19297|sudo:af19297:/home/vagrant RET
    Tramp: Waiting for prompts from remote shell...failed
    Tramp: Opening connection for root@af19297 using sudo...failed
    tramp-signal-hook-function: Tramp failed to connect.  If this happens repeatedly, try
        ‘M-x tramp-cleanup-this-connection’
    Quit

What steps am I missing?