I have what I thought would be a quick question, but it seems harder to do than I originally thought.

Let's say I'm connected to a Cisco device (switch or a router). How would I list interface names and the associated MAC addresses for the interfaces? Like, I don't want any more information than that. (I can handle a tiny bit of extra stuff, but nothing too crazy. Ideally, I'd like name/MAC address on one line, but I can deal with 2 lines if that's easier to do.)

NOTE: I do not mean the ARP cache. I just want the MAC address that is assigned to that interface, as well as the interface name.