Introduction to bridge-utils

The bridge-utils package contains a utility needed to create and manage bridge devices. This is useful in setting up networks for a hosted virtual machine (VM).



Development versions of BLFS may not build or run some packages properly if dependencies have been updated since the most recent stable versions of the book.

Package Information

bridge-utils Dependencies

Optional (to run tests)


User Notes:

Kernel Configuration

Enable the following options in the kernel configuration and recompile the kernel if necessary:

[*] Networking support --->            [CONFIG_NET]
      Networking options --->
        <*/M> 802.1d Ethernet Bridging [CONFIG_BRIDGE]

Installation of bridge-utils

Install bridge-utils by running the following commands:

autoconf                  &&
./configure --prefix=/usr &&

Testing the results requires running the six shell scripts in the tools/ directory. Two of the tests require two ethernet ports. Some tests will not preserve the current network configuration. See tests/README for details.

Now, as the root user:

make install


Installed Program: brctl
Installed Libraries: None
Installed Directories: None

Short Descriptions


is a program used to set up, maintain, and inspect the ethernet bridge configuration in the linux kernel