192.168.1.2 is the default IP address used by some private home network of computers and routers (typically outside of the United States). 192.168.1.2 can be a Gateway or an IP address. 192.168.1.2 is typically set as default IP address by the manufacturer for some Philips, Senao and a few other routers.
192.168.1.2 is a private IP address is that they can not make your computer recognizable outside your home or office network (or on the Internet). But you can use the router's public IP address to connect to a router from outside the home network.
If taken to consideration all the threats coming from the Internet, it turned out that the private IP addresses are pretty useful stuff in this point.
Using 192.168.1.2 to Connect to a Router is same as 192.168.1.1.