Hi All Let's see if I can make that clear. I have two ISP. ISP-A gave me just one IP and ISP-B gave a hole class-C. Both ISPs are connected to a Linux Router via ethernet cards I need that connections originated inside my Class-C be "NATed" thru ISP-A IP. And connections from outside to one of my Class-C IPs be NOT "NATed" when outgoing. i.e it must be possible to someone outside my Class-C to connect to some host inside it without "NATing" the packages that goes out. something like (i did not tried that. I am still wondering how to) iptables -t nat -A PREROUNTING -o ISP-A \ -m state --state NEW \ -j SNAT --to_source SOME_IP (will this rule continue to NAT the packets that follows the NEW one (the ESTABLISHED or RELATED ones for instance)? Fuzzy?? Regards Ethy
