Working with backup sets : Microsoft SharePoint Server backup sets (Windows) : Creating a Microsoft SharePoint Server backup set : Specifying the server
 
Specifying the server
1. Browse and select the server you want to backup. If the name resolution to IP address is not functional, create the backup set by typing the IP address in the Path field.
By default, your current user login to the DS-Client will be used to connect to the selected computer.
2. Select Ask for credentials to specify alternate credentials and click Next.
If you have selected Ask for Network Credentials, the Enter Network Credentials screen appears.
3. (If applicable) Enter the credentials for the target computer.