This will indeed allow you to permit only the desired MAC addresses. There is an inherit deny all rule at the end of the ACL. You first need to make a MAC ACL rule, then apply that rule to the desired interface. You can read more on page 657: [URL] This can also be configured through the CLI. The CLI guide includes some info and examples onpPage 276: [URL] Hope this helps.
Hi, Our network uses several Dell 2848 switches and we would like to restrict network access to a certain group of MAC addresses. Has anyone any experience of this?  From the menu I do see this option 'Home > Switching > Network Security > Access Control Lists > MAC Access Control Lists'.  I can't find any explanation of this function in the PDF manuals I downloaded so wasn't sure if I was in the right place. Any help would be greatly appreciated. 
N2848 - MAC Access Control Lists