Looking for a simple Firewall filter rules for giving the internet access to the known MAC addresses

RouterOS General
6

Here is the script I do use on my DHCP server (DHCP Lease script)
It converts all DHCP lease to static lease and log a message.

# Created Jotne 2019 v1.2
#
# This script converts all DHCP release to static automatically
# It should run on all routerOS version


# Test if this is a Bound session and the lease is a dynamic one. Do not change older reservation
:if (($leaseBound=1) && ([/ip dhcp-server lease find where dynamic mac-address=$leaseActMAC]!="")) do {

# Get the lease number
	:local Lease [/ip dhcp-server lease find mac-address=$leaseActMAC]
	
# Get date and time
	:local date [/system clock get date]
	:local time [/system clock get time]
	
# Make the lease static	
	/ip dhcp-server lease make-static $Lease
	
# Add date and time as a comment to show when it was seen first time	
	/ip dhcp-server lease comment comment="$date $time" $Lease
	
# Send a message to the log	
	:log info message="script=dhcp_static server=$leaseServerName IP=$leaseActIP MAC=$leaseActMAC"
}