fileserver with network external HDD

Hello

i have a RB951ui-2HnD router (ip:192.168.1.1) . it connect to ADSL modem with ether2 and with pppoe connection internet is OK and router give IP static . now i have a network external HDD (western digital 3T cloud) that connect with patch cord to router with IP: 102.168.1.50.
i want to connect to this hard from outside with static IP and work with share folders.
please help me
thanks

is there any one to help me? :frowning:

http://wiki.mikrotik.com/wiki/Forwarding_a_port_to_an_internal_IP