how to export scehma/tables remotely using datapump with out network link like normal export

Hi All,

i need some help/suggestions on exporting a schema/tables remotely by using datapump utility with out network_link paramater like in normal export& import.

we can export schema/tables backup remotely using normal export with the following syntax:

exp usrename/password@dbname file=exp.dmp log=exp.log owner=<schemaname> etc....

is it possible in to export in datapump expdp utility remotely usrename/password@dbname with out network_link paramater.

for example : expdp usrename/password@dbname directory=dir_name dumpfile=exp.dmp logfile=exp.log schemas=<schema_name>

Please provide your suggestions on this type of option in expdp utility with out netwrok_link paramater.