DD-WRT is a Linux based alternative OpenSource firmware suitable for a great variety of WLAN routers and embedded systems. The main emphasis lies on providing the easiest possible handling while at the same time supporting a great number of functionalities within the framework of the respective hardware platform used.
Meiner wird unterstützt Linksys WRT54GS v7.0 & 7.2 daher werde ich dd-wrt gleich einmal testen und dann hier berichten.
Oder soll ich doch openwrt probieren, denn auch OpenWrt unterstützt mein Gerät.
OpenWrt über sich selbst:

OpenWrt is described as a Linux distribution for embedded devices.

Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developer, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Ja, damit werde ich zuerst spielen. LOL