Erro Ao Aplicar Regras No Layer7

Pessoal tinha recompilado meu kernel no fedora core6 e apliquei o layer7 para bloquear algums p2p e o msn., tava tudo funcionando perfeitamente., mas do nada apareceu uma mansagem de erro ao tentar executar as regras.
as regras são descritas abaixo
#!/bin/sh
#
echo "================================================= ==============="
echo " Bloquear Softwares P2P
echo "================================================= ===============
#
iptables -I FORWARD -m layer7 --l7proto edonkey -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto edonkey -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto fasttrack -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto fasttrack -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto directconnect -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto directconnect -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto bittorrent -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto bittorrent -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto napster -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto napster -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto soulseek -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto soulseek -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto gnutella -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto gnutella -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto msnmessenger -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto msnmessenger -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto imesh -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto imesh -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto ares -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto ares -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto counterstrike-source -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto counterstrike-source -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto doom3 -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto doom3 -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto dayofdefeat-source -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto dayofdefeat-source -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto halflife2-deathmatch -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto halflife2-deathmatch -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto quake-halflife -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto quake-halflife -s any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto quake1 -d any/0 -j DROP
iptables -I FORWARD -m layer7 --l7proto quake1 -s any/0 -j DROP

#
echo "================================================= ==============="
echo " FIM DOS BLOQUEIOS
echo "=================================================

E os erros são esse aqui
================================================= ===============
Bloquear Softwares P2P
echo ================================================= ===============
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
================================================= ===============
FIM DOS BLOQUEIOS
echo =========================================

Alguém faz idéia do que pode ter ocorrido., tava funcionando tudo perfeitamente.

Isso acontecia comigo também, e inclui uma linha que fazia a carga dos módulos referentes no início do script.

Mas com certeza deve ter outra forma de resolver isso a nível de S.O.

Abraço