Use the packages from:
https://www.mobileread.com/forums/sho...d.php?t=225030
Install KUAL
Install MrPI
Then use MrPI to install USBnetworking (from the above link)
Then use KUAL/USbnet menu to enable/disable and report status of USBnet
After that -
Follow the directions included with USBnet on setting up ssh/sshd
Get it working over the USB cable before trying to make it work over WiFi.
Report back on progress -
Include the address at both ends of the cable and the hardware/OS/OS version of the non-Kindle end of the connection.