| posts: 4,840 | Location: jersey shore US (unfortunately)
The router has a pseudo firewall called NAT. Since the outside world only see's the first IP address after the modem due to nat, you must set up port forwarding. Find out what port this device utilizes and designate what the port range needs to be and designate a static IP. IE: 192.168.100.1:50 to 192.168.1.156. to simplify, its like having an address to an apartment which has its own building address and the port is like the sublet address.