Outside NAT script on Linux
/sbin/ifconfig eth1:1 202.141.240.174 netmask 255.255.255.248 /sbin/ifconfig eth1:1 up /sbin/iptables -t nat -A PREROUTING -j DNAT -d 202.141.240.174 --to-destination 192.168.0.22 /sbin/iptables -t nat -A POSTROUTING -j SNAT -s 192.168.0.22/32 -d 0/0 --to-source 202.141.240.174 Another useful link http://home1.gte.net/res0psau/security/nat-on-linux.html http://www.cyberciti.biz/faq/linux-demilitarized-zone-howto/
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