/ip firewall filter add chain=forward src-mac-address=aa:bb:cc:dd:ee:ff action=drop
Cấm địa chỉ mac trong mạng lan
when you block a mac address in firewall filter (forward and input chain) you block internet access and not dhcp lease.
/ip firewall filter
add chain=input src-mac-address=aa:bb:cc:dd:ee:ff action=drop
add chain=forward src-mac-address=aa:bb:cc:dd:ee:ff action=drop
add chain=forward src-mac-address=aa:bb:cc:dd:ee:ff action=drop