Buffalo WZR-HP-G301NH

Introduction
Seen on dd-wrt wiki, unsure if this device is real or not. Not on wikidevi.

Flashing dd-wrt
The Buffalo WZR-HP-G301NH is a router much like the Buffalo WZR-HP-G300NH.

It has been reported that DD-WRT can be installed on the Japanese version of this router by web upgrade.
 * http://www.dd-wrt.com/phpBB2/viewtopic.php?t=72949

After reading the above, see Where do I download firmware? for links.