Hi, Bert, Hi All I finished the reading of you Linux Advanced Routing & Traffic Control HOWTO... Congratulations for the excelent job ! You HOWTO helped me to implement my firewall and NAT/Routing. Could you please help me in a little doubt that I can''t figure ? I have just one C IP: 200.189.73.130 This IP answers for two hosts: <http://www.realad.com.br/> www.realad.com.br and <http://www.realmedia.com.br/> www.realmedia.com.br In the begining, there was a Windows 2000 machine answering for these hosts. Today I have ( finaly ) a Linux RH 7.3 Box :) The problem is: I can''t use Apache in the Linux box as web server because of some .asp applications we have here. So, I did a routing from the linux box to the Windows 2000 box, answering for my internal B IP''s: 192.168.0.1 is the linux box. <http://www.realad.com.br/> www.realad.com.br has 192.168.0.2 as IP in IIS and <http://www.realmedia.com.br/> www.realmedia.com.br has 192.168.0.5 as ip in IIS. I did the following to route packages that comes from internet to port 80 in the Linux box to port 80 in the internal W2K box: iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 80 -j DNAT --to-destination 192.168.0.2:80 and, for internal routing: iptables -t nat -A PREROUTING -p tcp -d 200.189.73.130 --dport 80 -j DNAT --to 192.168.0.2:80 <http://www.realad.com.br/> www.realad.com.br and <http://www.realmedia.com.br/> www.realmedia.com.br have different contents. My problem is... How I can route packages that come to <http://www.realad.com.br/> www.realad.com.br to 192.168.0.2 and <http://www.realmedia.com.br/> www.realmedia.com.br to 192.168.0.5. Just remembering, 192.168.0.2 and 192.168.0.5 are IP from the same IIS machine. Can anybody help me ??? Thanks a lot Diogo Carlos Fernandes Technical Support Manager Real Media Latin America www.realmedia.com Phone .: 55+11+3842-2166 Mobile .: 55+11+9266-5325 e-mail .: dfernandes@realmedia.com