/ip firewall filter
chain=forward src-address=192.168.12.250 dst-address=0.0.0.0/0 action=drop
/ip firewall filter
chain=forward src-mac-address= mac addresse klient action=drop
chain=forward src-address=192.168.12.250 dst-address=0.0.0.0/0 action=drop
/ip firewall filter
chain=forward src-mac-address= mac addresse klient action=drop