cat >  /etc/systemd/network/00_fm1-mac3.network << "EOF"

[Match]
Name=fm1-mac3
[Network]
DHCP=ipv4
Address=10.88.88.88/24


EOF

cat > /usr/bin/set_mac << "EOF"
#!/bin/bash
IFACE_INVERTORY="fm1-mac3 fm1-mac9 fm1-mac10 wlP2p1s0f0 wlP2p1s0f1"
SYSTEMD_DIR="/etc/systemd/network/"
x=00

for i in ${IFACE_INVERTORY}; do
FLAG_FILE=${SYSTEMD_DIR}${x}-${i}.link

if [[ ! -f "$FLAG_FILE" ]]; then
MAC=$(printf '02:%02X:%02X:%02X:%02X:%02X' $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256)))

if [[ "${i}" == "wlP2p1s0f0" ]] ; then
 c=wlan
elif [[ "${i}" == "wlP2p1s0f1" ]] ; then
 c=wlan
else
 c=ether
fi

cat << EOFF > ${FLAG_FILE}
[Match]
OriginalName=${i}

[Link]
Name=${i}
MACAddress=$MAC

EOFF
fi

((x=x+10))

done

EOF

cat > /etc/systemd/system/set_mac.service << "EOF"
[Unit]
Description=Change MAC address of network interface
After=network.target

[Service]
ExecStart=/usr/bin/set_mac
Type=oneshot
RemainAfterExit=yes

[Install]
WantedBy=default.target

EOF


systemctl disable dhcpcd.service
chmod u+x /usr/bin/set_mac
systemctl daemon-reload
systemctl enable set_mac
set_mac