You really should port forward instead of using any third-party software to do the <<Sharing>> job. Assuming your camera is accessible from a browser, your server should be hosted on port 80. Just check online for a tut on how to port-forward with your router s model. If you did it right, you should be able to access it from http://(your_ip)/ from any other connection (this is including your connection, obviously) . If your router doesnt allow you to port forward to port 80 (like mine) just try port 81. You should now be able to access it from http://(your_ip):81
And just a quick reminder, when it will ask you to choose between TCP or UDP, choose TCP.
I really hope this helps you!