After loading the HDF 2.1 Docker in Vmware, I could successfully use SSH to connect from Windows 10 to VM:
ssh root@111.111.111.111 -p 12222
now running the same command while VM is remained on cause an error:
ssh root@111.111.111.111 -p 2222
ssh: connect to host 111.111.111.111 port 2222: Resource temporarily unavailable