[[http://www.linux-foundation.org/en/Net:IFB|IFB]] :

{{{
 modprobe ifb numifbs=3

20: ifb0: <BROADCAST,NOARP> mtu 1500 qdisc noop qlen 32
    link/ether 5a:0e:aa:61:f6:a1 brd ff:ff:ff:ff:ff:ff
21: ifb1: <BROADCAST,NOARP> mtu 1500 qdisc noop qlen 32
    link/ether 9a:9c:6e:22:35:fb brd ff:ff:ff:ff:ff:ff
22: ifb2: <BROADCAST,NOARP> mtu 1500 qdisc noop qlen 32
    link/ether 9a:6e:48:d1:68:d0 brd ff:ff:ff:ff:ff:ff

 ip link set up ifb0
 tc qdisc add dev sonatel ingress
 tc filter add dev sonatel parent ffff: protocol ip prio 1 u32 match ip  src 81.80.122.13 flowid 1:1 action mirred egress redirect dev ifb0
}}}