Ros3 Bruteforce Login Prevention

This will prevent a SSH brute forcer to be banned for 10 days after repetitive attempts. Change the timeouts as necessary.

In /ip firewall filter

add chain=input protocol=tcp dst-port=22 src-address-list=ssh_blacklist action=drop \
comment="drop ssh brute forcers" disabled=no

add chain=input protocol=tcp dst-port=22 connection-state=new \
src-address-list=ssh_stage3 action=add-src-to-address-list address-list=ssh_blacklist \
address-list-timeout=10d comment="" disabled=no

add chain=input protocol=tcp dst-port=22 connection-state=new \
src-address-list=ssh_stage2 action=add-src-to-address-list address-list=ssh_stage3 \
address-list-timeout=1m comment="" disabled=no

add chain=input protocol=tcp dst-port=22 connection-state=new src-address-list=ssh_stage1 \
action=add-src-to-address-list address-list=ssh_stage2 address-list-timeout=1m comment="" disabled=no

add chain=input protocol=tcp dst-port=22 connection-state=new action=add-src-to-address-list \
address-list=ssh_stage1 address-list-timeout=1m comment="" disabled=no

This will prevent a Winbox brute forcer to be banned for 10 days after repetitive attempts. Change the timeouts as necessary.

In /ip firewall filter

add chain=input protocol=tcp dst-port=8291 src-address-list=winbox_blacklist action=drop \
comment="drop winbox brute forcers" disabled=no

add chain=input protocol=tcp dst-port=8291 connection-state=new \
src-address-list=winbox_stage3 action=add-src-to-address-list address-list=winbox_blacklist \
address-list-timeout=10d comment="" disabled=no

add chain=input protocol=tcp dst-port=8291 connection-state=new \
src-address-list=winbox_stage2 action=add-src-to-address-list address-list=winbox_stage3 \
address-list-timeout=1m comment="" disabled=no

add chain=input protocol=tcp dst-port=8291 connection-state=new src-address-list=winbox_stage1 \
action=add-src-to-address-list address-list=winbox_stage2 address-list-timeout=1m comment="" disabled=no

add chain=input protocol=tcp dst-port=8291 connection-state=new action=add-src-to-address-list \
address-list=winbox_stage1 address-list-timeout=1m comment="" disabled=no