Linksys-tftp is a BSD tftp client for the non-standard tftp authentication process used by some Linksys routers. These routers include the BEFW11, WRT54G and WRT54GL They all need a password for the tftp firmware file transfer to work. For example to upgrade a Linksys WRT54G router at 192.168.1.1 with tomato firmware, WRT54G_WRT54GL.bin, where the password is admin $linksys-wrt 192.168.1.1 linksys-tftp>verbose linksys-tftp>binary linksys-tftp>blocksize 512 linksys-tftp>rexmt 1 linksys-tftp>timeout 30 linksys-tftp>trace linksys-tftp>put WRT54G_WRT54GL.bin admin linksys-tftp>quit