root@debian:~# ifup br0
Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

SIOCSIFADDR: No such device
br0: ERROR while getting interface flags: No such device
br0: ERROR while getting interface flags: No such device
Bind socket to interface: No such device
Failed to bring up br0.


MY CONFIGURATION

iface br0 inet dhcp
tbridge_ports eth0