Unable to mount NFS

Hi all,

I have just bought a NV 104 and I fail to mount a NFS shared folder from FreeBSD 9.2 or ArchLinux.
I'm gone in Shares > Shares > New folder
I have call it "black".
Then I'm gone in Network Access > NFS, I have turn the switch button to "On".
AnyHost can read/write.
I have clicked on "Apply".

Then I have done many commands :

$ sudo mount -t smb -o username=Black,password=mypwd //192.168.0.42/black /mnt
mount: /192.168.0.42/black: Operation not supported by device
$ sudo mount -t smb -o username=Black,password=mypwd 192.168.0.42:black /mnt
mount: 192.168.0.42:/black: Operation not supported by device
$ sudo mount -t smb -o username=Black,password=mypwd //192.168.0.42:/black /mnt
mount: /192.168.0.42/black: Operation not supported by device
$ sudo mount -o username=Black,password=mypwd //192.168.0.42/black /mnt
mount: /192.168.0.42/black: mount option <password> is unknown: Invalid argument
$ sudo mount -o username=Black,password=mypwd //192.168.0.42/black /mnt
$ sudo mount_nfs -o username=Black,password=mypwd //192.168.0.42/black /mnt
mount_nfs: no <host>:<dirpath> nfs-name
$ sudo mount_nfs -o username=Black,password=mypwd 192.168.0.42:black /mnt
[tcp] 192.168.0.42:/black: Permission denied
^C
$ sudo mount -t smb -name=Black,password=mypwd 192.168.0.42:/black /mnt
$ sudo mount -t smb //192.168.0.42/black /mnt
mount: /192.168.0.42/black: Operation not supported by device
$ sudo mount 192.168.0.42:black /mnt
[tcp] 192.168.0.42:/black: Permission denied
^C
$ sudo mount 192.168.0.42:/black /mnt
[tcp] 192.168.0.42:/black: Permission denied
^C
$ sudo mount 192.168.0.42:/black /mnt
[tcp] 192.168.0.42:/black: Permission denied
^C
$ sudo mount -t smb //192.168.0.42/black /mnt
mount: /192.168.0.42/black: Operation not supported by device
$ sudo mount_nfs -o username=Black,password=mypwd 192.168.0.42:/black /mnt
[tcp] 192.168.0.42:/black: Permission denied

I have also tried FTP/SSH accesses, same results.

Any idea?

Thanks in advance for your help.