Storing your backup on a locally attached hard drive certainly offers speed and space benefits, but if you'd like to store the backups for one or several machines in a central location, or even offsite, then being able to directly backup to another Macintosh on your network is paramount.
Carbon Copy Cloner 3 offers the option of securely copying your selected data to another Macintosh on your network (or anywhere on the Internet for that matter). After a brief setup procedure to establish trust between your machine and the target machine, simply indicate the IP address or hostname of the Mac to which you have access and CCC will take care of the rest.
When you want to copy a selection of data from your hard drive to or from a remote Macintosh, choose the "Remote Macintosh..." option from the Destination menu.
Learn more about backing up your data to another Macintosh over a network