lhoffmeyer
Group: Members
Posts: 4
Joined: Feb. 2006 |
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Posted: Feb. 09 2006,18:09 |
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So, I am attempting to bridge the network which I assume will allow me to
obtain internet access.
I setup the network parameters in /opt/bootlocal.sh
that I originally thought would work and didn't (IP address, Gateway ...)
then, I created the bridge script I found the QEMU forums but have now
realized that there is no ifrename in the DSL packages so this script will
not work. Any suggestions/modifications to this that I can try?
Lance
#!/bin/sh
###############################################################################
#
# Setup a network bridge instead of the main network interface.
# This bridge can then be used to connect further (virtual) interfaces to the LAN, eg. Qemu's tap devices.
# Starting the bridge leads to ca. 5 seconds of "network unreachable".
# Network interface that shall be replaced by a bridge.
HOSTIF=eth0
#
###############################################################################
# Names used during bridge construction.
BRIF=br0
NEWHOSTIF=$BRIF$HOSTIF
# Check for root permissions
if [ `id -u` -gt 0 ]; then
echo "Need root permissions to run."
exit 1
fi
# Check for necessary tools
IFCONFIG=`which ifconfig`
IFRENAME=`which ifrename`
BRCTL=`which brctl`
IFUP=`which ifup`
IFDOWN=`which ifdown`
if [ -z $IFCONFIG ]; then
echo "ifconfig not found (make sure this machine has networking, and ifconfig is in the path)"
exit 127
fi
if [ -z $IFRENAME ]; then
echo "ifrename not found (is package ifrename installed?)"
exit 127
fi
if [ -z $BRCTL ]; then
echo "brctl not found (is package bridge-utils installed?)"
exit 127
fi
if [ -z $IFUP -o -z $IFDOWN ]; then
echo "ifup/ifdown not found (is this not a Debian distro?)"
exit 127
fi
# Main functionality
case "$1" in
start)
echo "Creating bridge $BRIF with $HOSTIF"
# Deactivate current network setup
$IFDOWN $HOSTIF
$IFCONFIG $HOSTIF 0.0.0.0 down
# Rename host interface
$IFRENAME -i $HOSTIF -n $NEWHOSTIF
# Create bridge
$BRCTL addbr $HOSTIF
$BRCTL stp $HOSTIF off
$BRCTL setfd $HOSTIF 1
$BRCTL addif $HOSTIF $NEWHOSTIF
$BRCTL show
# Activate bridge interfaces
$IFCONFIG $HOSTIF up
$IFCONFIG $NEWHOSTIF up
# Configure new bridge to match old config
echo "Configuring bridge $BRIF"
$IFUP $HOSTIF
;;
stop)
echo "Removing bridge $BRIF which contains $NEWHOSTIF"
# Deactivate interfaces
$IFDOWN $HOSTIF
$IFCONFIG $NEWHOSTIF down
$IFCONFIG $HOSTIF down
# Remove bridge
$BRCTL delif $HOSTIF $NEWHOSTIF
$BRCTL delbr $HOSTIF
# Rename bridged interface to old name
$IFRENAME -i $NEWHOSTIF -n $HOSTIF
# Activate old network setup
$IFCONFIG $HOSTIF up
# Reconfigure network to match original network setup
$IFUP $HOSTIF
;;
status)
$BRCTL show
;;
*)
echo "Usage: $0 [start|stop|status]"
;;
esac
exit 0
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