Hello Friend,
I have undergone the same thing last year.Hence would like to suggest you the following step for solving your query.Implementing them you can easily connect to your IP camera.
1.) You need to obtain IP address information by consulting with the network administrator of your network or by opening up a Command Prompt within Windows and entering in the "ipconfig /all" command.
2.) Access your network's router by typing in the router's IP address in a web browser..
3.) For configuring port forwarding on your router first get the details of your router form the manufacturer because with its help the port forwarding will be done.
4.) Accessing your IP Network Camera over the Internet.