wget command returning 404 Not Found error

I am trying to copy a file from a datastore into my one of the directories in my Ubuntu VM. 

The path to the file in the datastore (datastore1) is,

software/Ubuntu/Ubuntu/EnterpriseRepository_11.1.1.3.0 and the filename is OER111130_generic.zip

The command I give in the Ubuntu terminal shell is,

wget --http-user=root --http-password=vmpwd 'http://172.18.12.20/software/Ubuntu/Ubuntu/EnterpriseRepository_11.1.1.3.0/OER111130_generic.zip dsName=datastore1' --no-check-certificate

It is returning with this error

HTTP request sent, awaiting response.. 404 Not Found