Source : https://datahunter.org/node/2595/revisions/13095/view
額外加兩條 Route
/ip route
add check-gateway=ping distance=1 gateway=192.168.88.1 routing-mark=ISP1_Route
add check-gateway=ping distance=1 gateway=192.168.10.1 routing-mark=ISP2_Route
用來略過 的 rule (防 loop 死)
/ip firewall address-list
add address=192.168.88.0/24...