Gateway is a device which connects local business or enterprise network to external networks. It is responsible for parsing and routing packets coming in and out of the network and sending them to correct recipients. Usually it is quite easy to find your gateway address by either consulting with your router manual or technician. But if you cannot do this and need to know your router IP address then instructions below might be helpful.
Below are instructions on how to find your gateway IP address for Windows, Linux and Mac OS.
"ipconfig /all"and press Enter
ip route|grep default
nestat -nr|grep default