How Can I upload files to remote server from local machine

Question

hi all, iam working on a requirement, in which iam having a windows form with textbox to specify ip and a button upload and download, whenever user enters an ip in textbox and click on upload files from local server need to be uploaded to that particular server whose ip is provided in textbox, in the same way files need to be downloaded from the server to local machine, all these should happen over http protocol in c# please help me out how can i communicate with remote server and send packets of data to upload and download.

Thanks in advance..