Trivial File Transfer Protocol (TFTP)  | No authentication or encryption; dangerous to use over the Internet, but might be acceptable in a trusted environment Address format: tftp:[//server[:port]][/path]  | 
File Transfer Protocol (FTP)  | Authenticates, but does not encrypt Address format: ftp:[//server][/path]  | 
Secure copy (SCP)  | Authenticates and encrypts using Secure Shell (SSH1) Address format: scp:[//server][/path]  | 
SSH File Transfer Protocol (SFTP)  | Authenticates and encrypts using Secure Shell (SSH2); this is the most secure technique Address format: sftp:[//server][/path]  | 
Hyper text Transfer Protocol (HTTP)  | Address format: http:[//server][/path] For download of running and startup configurations  |