I have an old WRT54GS v1.1 router and thought I'd check if there were any firmware updates for it.
After looking at Linksys page for WRT54GS I was surprised to find the words "No firmware/driver download available" under every single hardware version except v3.
Tomato has been popular in the past, but it was last updated in 2010 so it won’t support as many routers and is more outdated.
There are many other third-party firmware projects, too — you’ll find a long list on Wikipedia.
Your router runs an operating system, known as its firmware.Enthusiast’s then had a router that ran Linux and the source code to the router.They could take that code and change it, adding features, tweaking it, modifying the interface, and then flashing their customized version back onto the router.Even user-friendly options like DD-WRT add powerful features like quality of service (Qo S) support for prioritizing network traffic, a feature often found only on higher-end routers.Here’s a demo of the DD-WRT interface you can view online.