what firewall linux distro applicance could track internet usage per device in my home?

Question

Anyone know of a community edition/open source/free firewall/gateway software product that I could install onto an old PC to act as my firewall/gateway/proxy etc, BUT for which it has the power to track internet usage per device in my home. So:

a) Mandatory - Track internet usage for devices on my home network on a per device basis (e.g. various PCs/Xbox etc)

b) Mandatory - Report/graph would would give a breakdown of internet usage, per device (e.g. IP address), per day.

c) Desirable - as in b) above but per hour

d) Desirable - realtime graph (e.g. 5 minute measurement intervals or something) that shows current internet usage per device

e) Mandatory - Handles all internal<=>internet requests for all protocols (e.g. HTTP, HTTPS, xbox etc)

f) Mandatory - No explicit settings in clients required - i.e. Transparent Monitoring concept (for both HTTP and non-HTTP traffic like xbox, skype etc)

g) Mandatory - easy "appliance" like installation onto a dedicated low spec PC

thanks in advance

Answer 1

pfSense with the ntop package comes very close to what you're looking for.

Answer 2

Dans Guardian does most of that too.