root@iron:/etc/sysconfig/network# cat bridged 
[eth0]
post_up = ifconfig eth0 promisc

[br0]
options = dhcp
pre_up = brctl addbr br0
pre_up = brctl addif br0 eth0
pre_up = sleep 1
post_down = brctl delif br0 eth0
post_down = brctl delbr br0

root@iron:/etc/sysconfig/network# netconfig --dry-run bridged
ifconfig eth0 down
kill(2298, 15);
ifconfig br0 down
brctl delif br0 eth0
brctl delbr br0
ifconfig eth0 0.0.0.0
ifconfig eth0 promisc
brctl addbr br0
brctl addif br0 eth0
sleep 1
dhcpcd -t 10 br0
root@iron:/etc/sysconfig/network# netconfig bridged
Error, br0: timed out
root@iron:/etc/sysconfig/network# dhcpcd -t 10 br0