ip firewall filter
add chain=input protocol=tcp dst-port=4099 src-address-list=ssh_blacklist action=drop "comment=drop ssh brute forcers"
add chain=input protocol=tcp dst-port=4099 connection-state=new src-address-list=ssh_stage3 action=add-src-to-address-list address-list=ssh_blacklist address-list-timeout=24h
add chain=input protocol=tcp dst-port=4099 connection-state=new src-address-list=ssh_stage2 action=add-src-to-address-list address-list=ssh_stage3 address-list-timeout=1h
add chain=input protocol=tcp dst-port=4099 connection-state=new src-address-list=ssh_stage1 action=add-src-to-address-list address-list=ssh_stage2 address-list-timeout=60s
add chain=input protocol=tcp dst-port=4099 connection-state=new action=add-src-to-address-list address-list=ssh_stage1 address-list-timeout=30s