Use the Synaptics Package manager in Ubuntu and search for "smbfs".
If not already installed, install it
Then add entries in /etc/fstab file like this:
//192.168.10.1/share /mnt/drive_X cifs guest,_netdev 0 0
If you have password enabled share, add an entry like this:
//192.168.10.1/share /mnt/drive_Y cifs username=xxxx,password=xxxxx,_netdev 0 0
There are no "Drives" in Linux, there are "mount points".
mount points are directories, so X: equivalent would be directory /mnt/drive_X where your share is mounted.