How to set up anti-virus gateway
I have been searching for a while, but I haven't anything really clear yet. I want to setup a Linux server which has to serve as a gateway for a LAN to the internet, with things like a firewall, NAT etc. I want to install anti virus software on it so that it scans all network traffic for viruses. I want to connect some old computers to the network which don't have anti virus scanning of their own.
I looked on the ClamAV site, but I couldn't find anything which was usable for this task. Does anyone know how to set up this?