First, Install these tools:
sudo apt install cifs-utils smbclient
Then, we will create a folder on the "mnt"
Then, if the IP is 192.168.1.20 and user "my-username" (do not use admin) we type:
sudo mount -t cifs -o 'username=my-username,password=my-password,vvers=1.0,uid=0001,gid=0001' //192.168.1.20/Volume_1 /mnt/nas/