на попытку iptables -A FORWARD -t mangle -d 192.168.0.0/24 -j MARK --set-mark 20 вываливает iptables v1.3.8: can't initialize iptables table `mangle ': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. хотя iptable_mangle 3712 1 ipt_MASQUERADE 4608 2 iptable_nat 8324 1 nf_nat 20396 2 ipt_MASQUERADE,iptable_nat nf_conntrack_ipv4 19080 2 iptable_nat nf_conntrack 66752 4 ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv4 ipmi_msghandler 38872 0 iptable_filter 3840 0 ip_tables 14820 3 iptable_mangle,iptable_nat,iptable_filter x_tables 16132 5 xt_mark,xt_MARK,ipt_MASQUERADE,iptable_nat,ip_tables