Router(config-if)#interface GigabitEthernet0/5
Router(config-if)#ip address 10.1.1.1 255.255.255.0
Router(config-if)#mpls ip
^
% Invalid input detected at '^' marker. Router(config-if)#do show version | in 841 Cisco C841M-4X-JSEC/K9 (revision 1.0) with 496716K/27571K bytes of memory.