Hello,
so the webserver and the video network are running well! Additional infos are here:
http://www.crazypixels.com/camuni-manual-part7.htm The option "Use this IP Address" is used to select a different address as the program has detected by itself.
The detected address is above shown in this dialog.
It could be, that your PC has 2 network cards and the program detects the first, but you would use the second.
In this case you can use this option.
But it is not useful for your purpose.
To use the webserver or video network from the Internet you have to adjust your router.
Please read this thread for helping:
viewtopic.php?f=3&t=26&hilit=dyndns