View Full Version : [all variants] Bonding together wlan0, eth0 and ppp0: Network is unreachable

June 20th, 2008, 10:09 PM

I'm trying to bond together all the network interfaces (https://help.ubuntu.com/community/UbuntuBonding) in my laptop (Lenovo 3000 V100). This is my /etc/network/interfaces:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# Bluetooth dialup with Nokia N95
iface ppp0 inet ppp
provider BluetoothDialup

#auto bond0
iface bond0 inet static
pre-up modprobe bonding
up ifconfig bond0 up
up ifenslave bond0 wlan0 eth0 #ppp0
down ifenslave --detach bond0 wlan0 eth0 #ppp0
post-down rmmod bonding

And this is my /etc/modprobe.d/bonding:

alias bond0 bonding
options bonding mode=0 miimon=100

So for now I'm trying just to make it work with wlan0 and eth0. Because I'm doing this with a laptop I want it to work in all these 3 scenarios:

Wireless connection available but wired connection not available
Wireless connection not available but wired connection available
Wireless and wired connections both available

In the first scenario I get a "Network is unreachable" message when I execute the following commands:

sudo ifup bond0
ping google.com

I've tried running "sudo iwconfig wlan0 ap any" before "sudo ifup bond0", and also after it.

Are my configuration files right?

With the right configuration files, what should I do to bring the bonding interface up?

Thank you in advance.

April 15th, 2012, 04:07 PM
did you ever got anywhere with this?