How to Bridge a Router With a DSL Modem

by Mikhail Polenin

Bridging two pieces of networking equipment is often necessary for introducing other computers into the network. Each group of computers connected to one specific modem or router is called a network segment. Bridging allows two separate segments to be conjoined and share an Internet connection. This kind of process is very easy when you have the right hardware installed in your computer.


Connect your modem to one network interface on the computer you would like to manage the Internet connection, and connect your router to the other network interface.


Log in as an administrator on your computer. If you do not log in as an administrator, you will not be able to complete this process.


Click on your "Start" menu, click on “Control Panel,” click “Network and Internet Connections” and then click “Network Connections.”


Find the connection that the modem is connected to and the one that the router is connected to, and select both by clicking one and holding the “Ctrl” key while clicking the other one.


Right-click one of the connections you just finished selecting and click “Bridge Connections.” The process might take a short time. After this is done, your modem should be able to provide the router with a shared Internet connection.


Try connecting another computer to the router and try browsing the Internet with it. You have completed the process correctly if you can start browsing the web on all computers you connect to that router.


  • check This is the quick and inexpensive solution to networking connections, but this is not exactly recommended if you expect to have an Internet connection on the other computers while the “serving” computer with the modem connected to it is off. Software bridging requires the computer to be on. You can easily buy a network switch and just hook up the modem and router to the switch to do the same exact thing for a price.
  • check Another quick solution is to connect the modem to the router, and stop the router from acting as a DHCP server. You will also have to configure the router so that both the router and the modem have the same subnet (e.g., 192.168.0.*). The IP of the router also has to be configured to be above or below what the modem has the right to manage and allocate. This is a solution if you really are up for the task, but you can save yourself a lot of sweat by buying yourself a network switch.

Items you will need

About the Author

Mikhail Polenin has been working with computers since 1997. His experience also expands to astrophysics, masonry, electricity and general appliance repair. He's written about various different subjects regarding astrophysics and electrical circuits for various online publications. Polenin attended the New World School of the Arts and the University of Florida.

Photo Credits

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