Hi, well i've been read a lot of tutorials but i can get this working.- I tell you my scenario, so you can better understand me. Scenario: Linux Box with theses settings eth0: (internal network 192.168.0.0/24) ip: 192.168.0.1 nm: 255.255.255.0 eth1: (all internal server hanged through this nic. They are three) ip: 192.168.1.1 nm: 255.255.255.0 eth2: (Nic used to make pppoe over a cisco 677) ip: 10.0.0.1 nm: 255.0.0.0 ppp0: Internet Connection (pppoe dhcp) Actually, everything is working perfectly but... Windows 2000 server running some Built-in software (such as a program on an intranet) listening on ports 7777/2106 eth0: ip: 192.168.1.2 nm: 255.255.255.0 gw: 192.168.2.1 Here we go with the issue: When a customer make a connection through ppp0 interface, the linux box route the packets (on ports 7777 and 2106) directly to win2000 server and it works fine, but with the External IP of the Firewall, so the software can't work . so i have to change the source ip before routing (not with SNAT) to use the firewall's internal ip (actually 192.168.2.1). how should i do that?., i tried to do this using DNAT, SNAT, FORWARD but it doesn't work I have many customers without system, so they are very ungry, ;-) Regards Guillermo from Argentina.- -- Atte. Guillermo Javier Nardoni Estudiante de Ing. en Sistemas Tel: 03402-15540590
