I know i'm a bit late but this thread is one of the first results on google still. So this is for anyone else who stumbles upon this.
No need for the command line here.
In the file explorer right click on your location and hit edit address.
Here you type smb://your.ip.here/ in my case smb://192.168.2.31/Moon for my Moon share
It will prompt you for the login and mount it for you