Originally Posted by shortduck
I am planning to buy a new wireless router but wants to install tomato or other OS on it so that I can enable SSH and DLNA.
So my question is is that possible to flash any wireless router?
No it is not possible to flash just any router with Tomato, DD-WRT, etc. Depends on the chip set and available memory.
You will need to research what version of the OS firmware can be flashed on to what routers. If you are confused after doing the research then don't attempt flashing a new OS onto a router.
Flashing a router requires diligent research and following precise instructions exactly. Many mistakes or errors in the process can result in your router being "bricked". Unless you are an electronic whiz a bricked router is a piece of junk and all that can be salvaged is the wall wart power supply which you can keep as a spare when you purchase a replacement router. Something so simple as a power glitch during the process can result in a bricked router.
If you want to learn how to flash a router buy a used 54G versions 1 -4 on e-Bay for $20 - $40 and then flash it with either DD-WRT or Tomato. If you succeed then you are ready to try the process on a more expensive router.