Connect the IP camera in the wireless router......
Open the wireless router configuration page by typing
http://192.168.1.1 log in entering username and password you have to NAT the port address....
for example you can give ip cam server address as 192.168.1.3
if you can ping the ip 192.168.1.3 then its ready..
Main thing is you have to NAT the port...for that check the setting with your IP camera and Router you are connecting in to.....