Command: modprobe -l | grep netfilter

/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_u32.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_time.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_tcpudp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_tcpmss.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_string.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_statistic.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_state.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_sctp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_realm.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_rateest.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_quota.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_policy.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_pkttype.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_physdev.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_owner.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_multiport.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_mark.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_mac.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_limit.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_length.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_iprange.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_helper.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_hashlimit.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_esp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_dscp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_dccp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_conntrack.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_connmark.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_connlimit.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_connbytes.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_comment.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_TRACE.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_TCPOPTSTRIP.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_TCPMSS.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_SECMARK.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_RATEEST.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_NOTRACK.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_NFQUEUE.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_NFLOG.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_MARK.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_DSCP.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_CONNSECMARK.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_CONNMARK.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/xt_CLASSIFY.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/x_tables.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nfnetlink_queue.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nfnetlink_log.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nfnetlink.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_tftp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_sip.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_sane.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_proto_sctp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_proto_gre.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_proto_udplite.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_pptp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_netlink.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_proto_dccp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_irc.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_netbios_ns.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_ftp.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_h323.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack.ko
/lib/modules/2.6.26-1-686/kernel/net/netfilter/nf_conntrack_amanda.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6table_raw.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6table_mangle.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/nf_conntrack_ipv6.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_rt.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_mh.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6table_filter.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_hl.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_hbh.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_frag.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_eui64.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_ah.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_REJECT.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_LOG.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_HL.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6_tables.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6_queue.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv6/netfilter/ip6t_ipv6header.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_tftp.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_snmp_basic.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_sip.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_proto_udplite.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_proto_gre.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_proto_sctp.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_pptp.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_irc.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_h323.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_ftp.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_proto_dccp.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_nat_amanda.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/iptable_raw.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/iptable_nat.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/iptable_mangle.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/iptable_filter.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_ttl.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_recent.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_ecn.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_ah.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_addrtype.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_ULOG.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_TTL.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_REJECT.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_REDIRECT.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_NETMAP.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_MASQUERADE.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_LOG.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_ECN.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ipt_CLUSTERIP.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/nf_conntrack_ipv4.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ip_queue.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/ip_tables.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/arpt_mangle.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/arp_tables.ko
/lib/modules/2.6.26-1-686/kernel/net/ipv4/netfilter/arptable_filter.ko
/lib/modules/2.6.26-1-686/kernel/net/decnet/netfilter/dn_rtmsg.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebtables.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebtable_nat.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebtable_filter.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_vlan.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_ulog.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_stp.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_snat.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_redirect.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_pkttype.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_nflog.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_mark_m.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_mark.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_log.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_limit.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_ip.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_dnat.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_arpreply.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_arp.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_among.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebt_802_3.ko
/lib/modules/2.6.26-1-686/kernel/net/bridge/netfilter/ebtable_broute.ko