Comment 21 for bug 1013199

Your configuration works on our setup without any issues.

auto eth0
iface eth0 inet manual
        address 0.0.0.0

auto br0
#iface br0 inet dhcp
iface br0 inet static
        address 172.16.17.40
        netmask 255.255.0.0
        network 172.16.0.1
        bridge_ports eth0
        bridge_fd 0
        bridge_stp off

root@ubuntu:~# uname -r
3.2.0-31-generic

root@ubuntu:~# ping 172.16.16.51
PING 172.16.16.51 (172.16.16.51) 56(84) bytes of data.
64 bytes from 172.16.16.51: icmp_req=1 ttl=255 time=0.613 ms
64 bytes from 172.16.16.51: icmp_req=2 ttl=255 time=0.378 ms
64 bytes from 172.16.16.51: icmp_req=3 ttl=255 time=0.409 ms
^C
--- 172.16.16.51 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 0.378/0.466/0.613/0.107 ms

Can you please send us your routing configuration also if you have any?