:INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT DROP [0:0] -A INPUT -i lo -j ACCEPT -A INPUT -i eth1 -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -p tcp -m tcp --sport 25 -j ACCEPT -A INPUT -i ppp0 -p tcp -m tcp --dport 22 -j ACCEPT -A INPUT -i ppp0 -p tcp -m tcp --dport 25 -j ACCEPT -A INPUT -i ppp0 -p tcp -m tcp --dport 80 -j ACCEPT -A INPUT -i ppp0 -p tcp -m tcp --dport 443 -j ACCEPT -A INPUT -i ppp0 -p tcp -m tcp --dport 10000 -j ACCEPT -A INPUT -i ppp0 -p udp -m udp --sport 53 -j ACCEPT -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 192.168.100.0/255.255.255.0 -j ACCEPT -A FORWARD -d 192.168.100.6 -p tcp -m tcp --dport 22 -j ACCEPT -A FORWARD -d 192.168.100.6 -p tcp -m tcp --dport 7783 -j ACCEPT -A OUTPUT -s 127.0.0.1 -j ACCEPT -A OUTPUT -o eth1 -j ACCEPT -A OUTPUT -p tcp -m tcp --sport 80 -j ACCEPT -A OUTPUT -p tcp -m tcp --sport 25 -j ACCEPT -A OUTPUT -p tcp -m tcp --sport 22 -j ACCEPT :PREROUTING ACCEPT [10:1191] :POSTROUTING ACCEPT [1:48] :OUTPUT ACCEPT [0:0] -A PREROUTING -i ppp0 -p tcp -m tcp --dport 555 -j DNAT --to-destination 192.168.100.6:22 -A PREROUTING -i ppp0 -p tcp -m tcp --dport 7783 -j DNAT --to-destination 192.168.100.6:7783 -A POSTROUTING -s 192.168.100.0/255.255.255.240 -o ppp0 -j MASQUERADE --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.648 / Virus Database: 415 - Release Date: 3/31/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.648 / Virus Database: 415 - Release Date: 3/31/2004