A Kamikaze That Doesn't Crash And Burn
It's a great little linux distribution that lets you do all sorts of geeky networky things, and is damn reliable to boot. I was a bit nervous about the upgrade from the (now) ancient White Russian release, to the new Kamikaze 8.09_RC2 release, but it all went very smoothly.
If you've shied away from OpenWrt in the past because of it's depencency on command-line installation, well shy no more. OpenWrt now includes an excellent web interface called LuCI, which makes admin very simple. Here it is, showing off real-time network statistics, available via a plugin module.
That big traffic surge? A Mac OS system update. As I was taking the screenshot it kicked off in the background unexpectedly.
Modules such as these are the main reason for installing a Linux distro on your router. Different routing modules, statistics and monitoring, security, QoS, application layer proxies, and many more, some with LuCI web interfaces. In short, there's lots to explore if you're at all a network geek (I am).
Although OpenWrt was originally written for the infamous Linksys WRT54, but now available for lots of other routers. Perhaps it is supported on the router you're using right now!? Why not go check?