rsync is another option, especially if you are re-copying the data or resuming an interrupted transfer. Log in to 1.1.1.1 and then transfer to 2.2.2.2
Code:
rsync -av /source_directory/ 2.2.2.2:/target_directory/
rsync copies only the changes, so it will save time and bandwidth after the first copy. It works over SSH by default these days so it is secure like scp.