...

For Networking assign the following:

Adaptor 1: NATNATNet

Adaptor 2: Host-only adapter (vboxnet0)

...

> ssh -p PORT test@localhost

Appendix - Virtual Box

Network Configurations

+-----------+-------------+-------------+----------------+----------------+
|           | VM <-> Host | VM1 <-> VM2 | VM -> Internet | VM <- Internet |
+-----------+-------------+-------------+----------------+----------------+
| HostOnly  |     Yes     |     Yes     |      No        |       No       |
| Internal  |     No      |     Yes     |      No        |       No       |
| Bridged   |     Yes     |     Yes     |      Yes       |       Yes      |
| NAT       |     No      |     No      |      Yes       |  Port forward  |
| NATNet    |     No      |     Yes     |      Yes       |  Port forward  |
+-----------+-------------+-------------+----------------+----------------+

Reference

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