My server have 2 network Interface Cards (NIC).
 
I just found if I create br0 and add both eth0 and eth1 to br0, I'll get errors:
 
eth1: received packet with own address as source address.
..
eth0: received packet with own address as source address.
 
I still don't figure out how to set ifcfg-br0 and ifcfg-eth* to make guest os as a server just like host server in the LAN.
 
can anybody post example for this 3 scripts?