Identify IP address of the router

Question: What Is the IP Address of a Router?
A typical home network router keeps two IP addresses, one for local devices to connect to across the LAN, and one for the external Internet (WAN) connection. How can you find a router’s IP addresses?

The internal, LAN-IP address is normally set to a default, private number. Linksys routers, for example, use for their internal IP address. D-Link and Netgear routers typically use Some US Robotics routers use, and some Belkin and SMC routers use No matter the brand of router, its default internal IP address is listed in the manufacturer’s documentation. Administrators have the option to change this IP address during router setup or at any time later. Unless someone manually changes it, however, this private LAN-IP address remains fixed. This address can be viewed and changed from the router’s administrative console.

The external, WAN-IP address of the router is set when the router connects to the Internet service provider. This address can also be viewed on the router’s administrative console. Alternatively, the WAN-IP address can be found by visiting a Web-based IP address lookup service like from any computer on the home LAN.

Another way to identify the public IP addresses of routers, involves executing a ping or traceroute command. From inside a home network, the (DOS) command „ping -r 1“ will send a message through the home router that will cause its IP address to be displayed. For example, „ping -r 1“ should result in a message like the following displayed on the command prompt:


      Reply from bytes=32 time=294ms TTL=56


In this example, the IP address after „Route:“ ( corresponds to the router WAN address.

On corporate networks, network discovery services based on SNMP can automatically determine the IP addresses of routers and many other network devices.

Jan D.
Jan D.

"The only real security that a man will have in this world is a reserve of knowledge, experience, and ability."

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