Нужен обычный непрозрачный прокси, я это все сделал, конфиг указан мною, похоже надо открыть порт в iptables, открыл....но ничего не работает через негоiptables:
*nat
:PREROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
-A POSTROUTING -o eth0 -j SNAT --to-source yyy.yyy.yyy.yyy
COMMIT
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type destination-unreachable -j REJECT --reject-with icmp-host-prohibited
-A INPUT -p icmp -m icmp --icmp-type parameter-problem -j REJECT --reject-with icmp-host-prohibited
-A INPUT -p icmp -m icmp --icmp-type source-quench -j REJECT --reject-with icmp-host-prohibited
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 53 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 53 -j ACCEPT
-A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
-A FORWARD -p icmp -m icmp --icmp-type destination-unreachable -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -p icmp -m icmp --icmp-type parameter-problem -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -p icmp -m icmp --icmp-type source-quench -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -p icmp -j ACCEPT
-A FORWARD -i lo -j ACCEPT
-A FORWARD -i eth0 -j ACCEPT
-A FORWARD -i eth1 -j ACCEPT
-A FORWARD -o eth0 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
eth0 - внешний интерфейс, смотрящий в мир