[paddi91]

Do you know if this is somehow possible using OpenWRT? Would be great to have a life updating view of all connected Wifi devices including bandwith usage / limit and so on.

[atmosx]

Of course. You can even send the dhcp logs remotely, to a syllogism server. OpenWRT can do a lot more than that...

[rufugee]

Yes, openwrt + luci (its built-in web interface) gives you this out of the box.