The router should be able to supply that IP address. The router will have a list of all IP addresses assigned to all the equipment on the home network and it may be a process of elimination by trying all the IP addresses in turn.
Just type the IP address in to the address bar of the PCs internet browser. When you get the correct one you will end up with the boxes' web interface (Webif)
Expand the image of the remote and you will have a fully working virtual remote to control the box.
The only gotcha is that the IP address may change on every reboot of your box unless the router is user configured to assign the same address to your box every time it connects.
On my router the assigned IP numbers are in LAN Setting section under the heading of Client List
I then have a separate list of "Address Reservation" which I created myself by copying the MAC address from the Client List and the IP number also from the Client list ( you can assign your ownIP address order using the IP Client list as a guide - my IPs are assiged 192.168.1.101, 192.168.1.102,192.168.1.103 etc. for each equipment on my network rather than some random final number .1XX that the router may assign if not told to reserve the same IP numbers for each of the equipments.}
All routers should have similar options but may be labelled differently
http://www.openvix.co.uk/index.php/g...ashing-guides/