A gateway will likewise not have this information, but will at least know the addresses of other gateways to which it can hand the traffic. Your default gateway is on the same subnet as your computer, and is the gateway your computer relies on when it doesn't know how to route traffic.Though your default gateway and your IP address may share many of the same numbers, they are not the same.To see your default gateway:n Windows XP, from the menu, click. In the Open: field, type cmd, and then click. 1  This will open the command prompt. 2  At the prompt, enter ipconfig. 3  This will display your network information, including your default gateway.