General :: Why SMBmount Not Attempt Working

I can successfully access one of our local samba shares, which is on a windows pc (called marina) as follows:
$ sudo /usr/bin/smbclient \\marina\resource_library <my password>
Domain=[MARINA] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]
smb: >
So, that works. I'm now trying to mount the above location (the resource_library folder on marina) to /mnt/resource_library (as a read only folder), but it keeps failing - I've tried a few variations of specifying the location:
$ sudo smbmount \\marina\resource_library /mnt/resource_library -o username=max,password=<my password>,r
mount error: could not resolve address for marina: No address associated with hostname
No ip address specified and hostname not found
and
$ sudo smbmount //marina/resource_library /mnt/resource_library -o username=max,password=<my password>,r
mount error: could not resolve address for marina: No address associated with hostname
No ip address specified and hostname not found
And both of the above with MARINA instead of marina.