The 123.hp.com/setup is actually a website that is set up by HP technicians to help people set up their HP Printer by downloading the printer drivers and other software through this website. On this website, you can find directions on how you can connect your HP Printer wirelessly, with help of a USB cable, and even things like how one can install a cartridge in the printer.
192.168.1.1 Default Router IP Login
192.168.1.1 IP address is widely used as the address pointing to the network router for Internet Access that you have at home. It is one of the few most commonly used IP addresses that router makers assign to a router, 192.168.l.l is the most usual one though 10.0.0.1 or 192.168.0.1 are also among the well-known ones. These are also called and defined as host addresses.
What configuration is available at 192.168.1.1