Permanently change MAC address on Libra 2

[ajkessel]

This worked: I added a file /etc/udev/rules.d/98-set-mac.rules:

KERNEL=="wlan*", ACTION=="add", RUN+="/usr/local/Kobo/udev/fix_net"

and then fix_net is:

#/bin/sh
MAC='mac address here'
ip link set dev wlan0 down 
ip link set dev wlan0 address $MAC
ip link set dev wlan0 up

So the final workflow is to authenticate with an Apple device using its built-in hardware MAC address; then switch the Apple device to randomize MAC (to avoid duplication); then when the Kobo boots up it can access the network using the previously-authenticated MAC address.

[jgneff]

For what it's worth, a long time ago I had luck adding an exit hook to the DHCP response, as follows:

# /etc/dhcpcd.exit-hook - sets the host name from DHCP data
# In Ubuntu: /lib/dhcpcd/dhcpcd-hooks/30-hostname (dhcpcd5)
# Called by: /libexec/dhcpcd-run-hooks
if $if_up; then
    if [ -n "$new_host_name" ]; then
        hostname "$new_host_name"
    fi
fi

I wanted to set the host name as provided by my router in the DHCP response, but perhaps you could set the MAC address here instead.