Hi guys... is there any application to had a NAT with a failover connection ? I mean I will had a PC with 3 NIC one with a private IP, and the other two with Public IP's (each one from a different ISP Provider), What I need it's to had a NAT configured using one of the ISP-Connection and if that connection faill then it start using the second ISP Connection... ISP1-Dedicated Line-----> NIC1 (Public IP1) -> Default One -----> |--->NIC3 ---> (Private IP) ---NAT ISP2-Dedicated Line-----> NIC2 (Public IP2) -> Fail over one So I need to get out using the ISP-1 as the default gateway... and only in case of failure on that line, an automatically change of the default gateway to the Second ISP on my NAT Box, so I didn't had to make any change on my NAT-Users (PC's). THanks.. bye --ed