Make the mount folder

sudo mkdir /mnt/nethdd

Add the network drive to fstab:

sudo nano /etc/fstab

// /mnt/nethdd cifs auto,password= 0 0

Mount it

sudo mount /mnt/mynethdd

Ok that worked as long as you want to have it read only..
Tried some other things to get it read/write..

This seems to work for now:

sudo chown -R pi /mnt/nethdd/
sudo chmod a+rwx /mnt/nethdd/

// /mnt/nethdd cifs rw,nounix,iocharset=utf8,file_mode=0777,dir_mode=0777 0 0

remount withour rebooting:

sudo mount -a