ssh on Win10

I try to use ssh command on Windows 10.

servers

Try to create ssh key on windows But I got failed message as follows

PS C:\powershell> ssh-keygen.exe -q -b 2048 -t rsa -N "" -C "" -f pm01_rsa
Saving key "pm01_rsa" failed: passphrase is too short (minimum five characters)
PS C:\powershell> l

So I executed the below command.

PS C:\powershell> ssh-keygen.exe -b 2048 -t rsa -f pm01_rsa
Generating public/private rsa key pair.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:

 *snip*

PS C:\powershell> 

After this, I copy public key to remote server "pm01" and prepare for ssh connection. and then, I try to create a new connection for port forward.

PS C:\powershell> Start-Process -FilePath ssh -ArgumentList "-i .\pm01_rsa -N -f -L 10022:192.168.122.62:22 root@192.168.1.201" -WindowStyle Hidden
PS C:\powershell>
PS C:\powershell> Get-Process -Name ssh

 NPM(K)    PM(M)      WS(M)     CPU(s)      Id  SI ProcessName
 ------    -----      -----     ------      --  -- -----------
     13     1.94       7.80       0.03   31928   1 ssh

PS C:\powershell>

Finally, I can access to localhost:10022.