(DD-WRT is a Linux operating system, but it is essentially a third-party router firmware. Its routing and network management functions are very robust and are widely used in LinksysWRT54G/GS/GL, or other 802.11g wireless routers based on Broadcom's reference solution. DD-WRT can be flashed to supported router devices to make the router more robust. In the same way, you can also make DD-WRT alone)