Why not just use a router / switch? Thus it reduces the nic's down to two: one for the wan and one for the lan. Jay > Message: 15 Rodolfo J. Paiz kirjoitti viestissään (lähetysaika keskiviikko, 5. toukokuuta 2004 05:36): > The firewall/gateway will run Fedora Core 1. I think I need > *five* Ethernet adapters in the server (eth0 to the ISP, and > eth1-eth4 to the four tenants) so that each client is properly > isolated into their own network and cannot access the other > clients' computers. If there is a way to do this securely and > safely without a gaggle of Ethernet cards, please do tell! >If running out of PCI slots is the problem, there are dual and >quad port Ethernet adapters, e.g from Intel: