network drive manual mount

I am using 12.04. I have a network drive on my wireless router.
When I use nautilus browse network, I can access my content on that drive.
Properties of that shows as smb//<IP address>/freeagent%20goflex%20drive/mySpace and type as cifs
By the way it does not have any permissions set.
The same I want mount manually. I tried
 sudo mount -t cifs //<IP address/freeagent%20goflex%20drive/mySpace /home/<username>/mntspace -o username=<username>

But it did not mount. dmesg says error return code is -6. I have checked for spelling mistakes.
How do I do it. What am I doing wrong ?

Thanks in advance