Centos, Iptables and Layer7

[trunglam]

Hi All,

I folow this TOT how-to-set-up-a-linux-layer-7-packet-classifier-on-centos5.1
and installed success layer7 filter but when i testing with simple rule like this

# iptables -A OUTPUT -m layer7 --l7proto http -j DROP
iptables: No chain/target/match by that name
#
I was try many time with others option but still not success

Any body help me please, I knew Layer7-filter for long time but this is the first time i try to use.

Thank very much....