I've almost given up on this.  I'm trying to configure a bridge between 
wlan0 and eth0.  I can make that work.  My problem is that
my BBB rev C refuses to follow my orders.

I do not want dhclient running on eth0 and something keeps starting it. 
 This is causing problems for the bridge.   There should be no IP address 
on eth0.

What I think that is going on is that when eth0 is up (added to bridge) 
that ifup is being called.  It seems to be unaware of 
/etc/network/interfaces.

How can I fix this?


root@beaglebone:~# ps -ef | grep dhclient
root 1687 1 0 20:39 ? 00:00:00 dhclient -v -pf /run/dhclient.br0.pid -lf 
/var/lib/dhcp/dhclient.br0.leases br0
root 2697 1 0 20:39 ? 00:00:00 /sbin/dhclient -v eth0


root@beaglebone:~# cat /etc/default/networking
# Configuration for networking init script being run during
# the boot sequence

# Set to 'no' to skip interfaces configuration on boot
#CONFIGURE_INTERFACES=yes

# Don't configure these interfaces. Shell wildcards supported/
EXCLUDE_INTERFACES="eth0"

# Set to 'yes' to enable additional verbosity
#VERBOSE=no

root@beaglebone:~# cat /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



auto eth0
iface eth0 inet manual
pre-up ifconfig $IFACE up
pre-down ifconfig $IFACE down


auto wlan0
iface wlan0 inet manual
pre-up ifconfig $IFACE up
pre-down ifconfig $IFACE down


auto br0
iface br0 inet dhcp
bridge_ports eth0
bridge_stp on



# Ethernet/RNDIS gadget (g_ether)
# ... or on host side, usbnet and random hwaddr
# Note on some boards, usb0 is automaticly setup with an init script
iface usb0 inet static
address 192.168.7.2
netmask 255.255.255.0 <callto:255.255.255.0>
network 192.168.7.0
gateway 192.168.7.1

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