Port security on a cisco Router

I was wondering is it possible to enable port security on cisco router that has a switch within.
I have a 1811 cisco and i wanted to do port security on the ports 2-9 of the switching part, but i see the command for switchport are not the same of those in a switch.

what is the right way to secure a single mac address or a group of mac addresses on these ports?

thanks for helping