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).
This package is known to build and work properly using an LFS-7.7 platform.
Download MD5 sum: ec7b381160b340648dede58c31bb2238
Download size: 36 KB
Estimated disk space required: 1 MB
Estimated build time: less than 0.1 SBU
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]
Install bridge-utils by running the following commands:
patch -Np1 -i ../bridge-utils-1.5-linux_3.8_fix-1.patch && autoconf -o configure configure.in && ./configure --prefix=/usr && make
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
To automate bridge creation and configuration, install the
script included in the blfs-bootscripts-20150823 package.
bridge script depends on the
commands /sbin/ifup and /sbin/ifdown and the service
script ipv4-static from
the LFS bootscripts
dated January 27, 2012 or later.
The following configuration file will create a bridge device at boot time and attach the eth0 device to it. If more than one device is desired, use a space separated list of INTERFACE_COMPONENTS. This configuration is useful when planning to run a virtual machine such as kvm/qemu.
Other SERVICE combinations are possible, for example, SERVICES="bridge dhcp". In that case, the address parameters are not needed, but do not interfere if present. The bridge service may also be used alone, but will require additional subsequent configuration.
Do not run a parallel configuration for a device in the
INTERFACE_COMPONENTS list. For instance, in the example below,
do not configure
/etc/sysconfig/ifconfig.eth0 to run at boot
time. The command ifdown
br0 followed by command ifup eth0 will work, but
don't try to have both up at the same time.
cat > /etc/sysconfig/ifconfig.br0 << "EOF"
ONBOOT=yes IFACE=br0 SERVICE="bridge ipv4-static" # Space separated IP=192.168.1.32 GATEWAY=192.168.1.1 PREFIX=24 BROADCAST=192.168.1.255 CHECK_LINK=no # Don't check before bridge is created STP=no # Spanning tree protocol, default no INTERFACE_COMPONENTS="eth0" # Add to IFACE, space separated devices IP_FORWARD=trueEOF
All addresses should be changed to meet your circumstance.
Last updated on 2015-02-27 04:16:43 +0000