Hi Nataraj, Take a look at the Intel Atom platform. The D510MO & D945GCLF2D run beautifully under CentOS and I've used both as firewalls in the past. Another linux based firewall system I use has users reporting the two boards above supporting AV, Content Filtering (proxy), etc on 50Mbps FIOS connections down in the states. If you want multiple onboard nics, the Jetway boards are also supposedly decent. I've never used one but users from the same site have reported sucess with these boards, and the optional 3x1GB nic still fits within the ATX backplate. Only downside to these boards, both Intel & Jetway, is they seem to prefer Realtek chipsets onboard. Jetway I understand because of price points. Intel I don't as the Pro/1000 is a rock solid nic. That said, I've never had a problem with flaky drivers or hardware from Realtek. Maybe I'm just lucky. :-) -- Drew "Nothing in life is to be feared. It is only to be understood." --Marie Curie