How to Work With IP Address

Connect to a router at to make admin changes

An illustration of how to use the IP Address 192..168.100.1 to make admin changes to a router.

 ©Lifewire is a private IP address that can be assigned to any local network device. It might also be assigned as the default IP address for a few router models.

The address can be manually assigned to any device on a local network that's configured to use this address range. This means that it might be assigned to a laptop, smart TV, smartphone, desktop computer, tablet, Chromecast, etc. could also be used as the default address for routers, meaning that it's the built-in IP address that the device uses when it's first shipped out from the manufacturer. and are easily confused with each other. Home networks use 192.168.1.x addressing (like much more often than 192.168.100.x.

How to Connect to a 192..168.100.1 Router

Screenshot of IP address in URL bar of Google Chrome

Administrators can log in to a router at this IP address by accessing it like they would any other URL. In a web browser, type the following address into the navigation bar:

It's important to type the address exactly as it's shown above. A mistake like 192..168.100.1 will not open the router's configuration page.

Opening the above address triggers the web browser to prompt for the router's admin password and username.

Administrators can easily change a router's IP address from some other default or custom number to Some might choose to make this change so that it's easier to remember the address for logging in to the router, but there otherwise is no particular benefit to using over any other IP address.

Most routers do not use as their default IP address but instead employ,,, or

You can see a list of default IP addresses for lots of routers and modems in these lists, along with their corresponding default passwords and default usernames: as a Client IP Address

An administrator can choose to assign to any device on a local network, not just to the router. This can be done dynamically via DHCP or manually to form a static IP address.

To use DHCP, the router must be configured to include in the range (pool) of addresses that it allocates. If a router starts its DHCP range at, tens of thousands of addresses exist in the range with lower numbers, making it highly unlikely that ever gets used. Administrators more commonly assign to be the first address in the DHCP range so that not only will be used but also,, etc.

With manual, static IP address assignment, the router's network mask must be set up correctly in order to supports the IP address. See our explanation of subnet masks for more information.

More Information on is a private IPv4 network address, meaning that you cannot connect to the client device or router from outside the home network like you can with a public IP address. Its use is only relevant within a local area network (LAN).

The exception to this rule is if your network is using a dynamic DNS service, which will let you connect to the internal network via a publicly accessible hostname.

Neither routers nor clients experience any difference in network performance or security from having this address compared to any other private network address.

Only one device should be assigned the IP address. Administrators should avoid manually assigning this address when it belongs to a router's DHCP address range. Otherwise, IP address conflicts can result since the router can dynamically assign to one device even though another is already using it as a static address.