Покажи
sudo iptables-save
:PREROUTING ACCEPT [11836416:7416462187]
:INPUT ACCEPT [869337:229328296]
:FORWARD ACCEPT [10966655:7187112541]
:OUTPUT ACCEPT [1030264:876145652]
:POSTROUTING ACCEPT [11997662:8063390513]
COMMIT
# Completed on Fri Mar 19 18:34:00 2010
# Generated by iptables-save v1.4.4 on Fri Mar 19 18:34:00 2010
*nat
:PREROUTING ACCEPT [115049:11058009]
:POSTROUTING ACCEPT [153247:13133324]
:OUTPUT ACCEPT [95376:8754140]
-A PREROUTING -p tcp -m tcp --dport 6900 -j DNAT --to-destination 192.168.50.2:6900
-A PREROUTING -p tcp -m tcp --dport 5834 -j DNAT --to-destination 192.168.50.2:5834
-A PREROUTING -p udp -m udp --dport 48594 -j DNAT --to-destination 192.168.50.2:48594
-A PREROUTING -p tcp -m tcp --dport 5835 -j DNAT --to-destination 192.168.100.2:5835
-A PREROUTING -p udp -m udp --dport 48595 -j DNAT --to-destination 192.168.100.2:48595
-A POSTROUTING -s 192.168.50.2/32 -o ppp0 -j MASQUERADE
-A POSTROUTING -s 192.168.100.2/32 -o ppp0 -j MASQUERADE
-A POSTROUTING -s 192.168.1.2/32 -o ppp0 -j MASQUERADE
-A POSTROUTING -s 127.0.0.1/32 -o ppp0 -j MASQUERADE
COMMIT
# Completed on Fri Mar 19 18:34:00 2010
# Generated by iptables-save v1.4.4 on Fri Mar 19 18:34:00 2010
*filter
:INPUT ACCEPT [445201:197236774]
:FORWARD ACCEPT [29:1543]
:OUTPUT ACCEPT [181:19859]
-A INPUT -i ppp0 -p tcp -m tcp --dport 4662 -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --dport 6901 -j ACCEPT
-A INPUT -i eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --dport 25 -j ACCEPT
-A INPUT -i eth1 -p tcp -m tcp --dport 25 -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --dport 110 -j ACCEPT
-A INPUT -i eth1 -p tcp -m tcp --dport 110 -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --dport 6900 -j ACCEPT
-A INPUT -i eth1 -p tcp -m tcp --dport 6900 -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --dport 5834 -j ACCEPT
-A INPUT -i eth1 -p tcp -m tcp --dport 5834 -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --dport 20 -j ACCEPT
-A INPUT -i eth1 -p tcp -m tcp --dport 20 -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --dport 21 -j ACCEPT
-A INPUT -i eth1 -p tcp -m tcp --dport 21 -j ACCEPT
-A INPUT -i ppp0 -p udp -j ACCEPT
-A INPUT -i eth1 -p udp -j ACCEPT
-A INPUT -i ppp0 -p tcp -m tcp --tcp-flags FIN,SYN,ACK SYN -j LOG --log-prefix "INPUT reject ppp0" --log-level 7 --log-tcp-options
-A INPUT -i eth1 -p tcp -m tcp --tcp-flags FIN,SYN,ACK SYN -j LOG --log-prefix "INPUT reject eth1" --log-level 7 --log-tcp-options
-A INPUT -i ppp0 -p tcp -m tcp --tcp-flags FIN,SYN,ACK SYN -j REJECT --reject-with icmp-port-unreachable
-A INPUT -i eth1 -p tcp -m tcp --tcp-flags FIN,SYN,ACK SYN -j REJECT --reject-with icmp-port-unreachable
-A FORWARD -o ppp0 -p tcp -m tcp --dport 6900 -j ACCEPT
-A FORWARD -o eth1 -p tcp -m tcp --dport 6900 -j ACCEPT
-A FORWARD -o ppp0 -p tcp -m tcp --dport 5834 -j ACCEPT
-A FORWARD -o eth1 -p tcp -m tcp --dport 5834 -j ACCEPT
-A FORWARD -s 192.168.50.0/24 -i ppp0 -j ACCEPT
-A FORWARD -s 192.168.50.0/24 -i eth0 -j ACCEPT
-A FORWARD -d 192.168.50.0/24 -o ppp0 -j ACCEPT
-A FORWARD -d 192.168.50.0/24 -o eth0 -j ACCEPT
-A FORWARD -s 192.168.100.0/24 -i ppp0 -j ACCEPT
-A FORWARD -s 192.168.100.0/24 -i eth2 -j ACCEPT
-A FORWARD -d 192.168.100.0/24 -o ppp0 -j ACCEPT
-A FORWARD -d 192.168.100.0/24 -o eth2 -j ACCEPT
-A FORWARD -o ppp0 -p tcp -j LOG --log-prefix "FORWARD drop ppp0" --log-level 7 --log-tcp-options
-A FORWARD -o eth1 -p tcp -j LOG --log-prefix "FORWARD drop eth1" --log-level 7 --log-tcp-options
-A FORWARD -o ppp0 -p tcp -j DROP
-A FORWARD -o eth1 -p tcp -j DROP
-A FORWARD -o eth0 -p tcp -j DROP
-A OUTPUT -j ACCEPT
COMMIT
# Completed on Fri Mar 19 18:34:00 2010