<!-- Code generated from the comments of the SSHInterface struct in helper/communicator/config.go; DO NOT EDIT MANUALLY -->

-   `ssh_interface` (string) - One of `public_ip`, `private_ip`, `public_dns`, or `private_dns`. If
    set, either the public IP address, private IP address, public DNS name
    or private DNS name will used as the host for SSH. The default behaviour
    if inside a VPC is to use the public IP address if available, otherwise
    the private IP address will be used. If not in a VPC the public DNS name
    will be used. Also works for WinRM.
    
    Where Packer is configured for an outbound proxy but WinRM traffic
    should be direct, `ssh_interface` must be set to `private_dns` and
    `<region>.compute.internal` included in the `NO_PROXY` environment
    variable.
    
-   `ssh_ip_version` (string) - The IP version to use for SSH connections, valid values are `4` and `6`.
    Useful on dual stacked instances where the default behavior is to
    connect via whichever IP address is returned first from the OpenStack
    API.
    