Помогите решить проблему. Выходит Bad argument `ppp0'. Вот мой код iptables:
# eth0 - inet
# eth1 - local
# Удаляются старые настройки
iptables -F
iptables -t nat -F
iptables -t mangle -F
iptables -X
# Всегда принимать замыкания трафика
iptables -A INPUT -i lo -j ACCEPT
# Allow established connections, and those not coming from the outside
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -m state --state NEW -i ! ppp0 -j ACCEPT
iptables -A FORWARD -i ppp0 -o eth1 -m state --state ESTABLISHED,RELATED -j ACCEPT
# Allow outgoing connections from the LAN side.
iptables -A FORWARD -i eth1 -o ppp0 -j ACCEPT
# Masquerade.
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
# Don't forward from the outside to the inside.
iptables -A FORWARD -i ppp0 -o ppp0 -j REJECT
iptables -A FORWARD -i eth0 -o ppp0 -j REJECT
# открыть порт 22 для доступа из интернета
iptables -A INPUT -i ppp0 -p tcp --dport 22 --syn -m conntrack --ctstate NEW -j ACCEPT
iptables -A PREROUTING -t nat -p tcp -i ppp0 --dport 23 -j DNAT --to 192.168.2.25:22
iptables -I FORWARD -p tcp -i ppp0 --dport 22 -j ACCEPT