i note that
add chain=output connection-mark=no-mark per-connection-classifier=both-addresses:2/0
action=mark-connection new-connection-mark=wan1_conn passthrough=yes
add chain=output connection-mark=no-mark per-connection-classifier=both-addresses:2/1
action=mark-connection new-connection-mark=wan2_conn passthrough=yes
has no counter
why???
/ ip firewall mangle
add chain=input in-interface=pppoe-out1 action=mark-connection new-connection-mark=wan1_conn
add chain=input in-interface=pppoe-out2 action=mark-connection new-connection-mark=wan2_conn
add chain=output connection-mark=no-mark per-connection-classifier=both-addresses:2/0
action=mark-connection new-connection-mark=wan1_conn passthrough=yes
add chain=output connection-mark=no-mark per-connection-classifier=both-addresses:2/1
action=mark-connection new-connection-mark=wan2_conn passthrough=yes
add chain=output connection-mark=wan1_conn action=mark-routing new-routing-mark=to_wan1
add chain=output connection-mark=wan2_conn action=mark-routing new-routing-mark=to_wan2
add chain=prerouting dst-address-type=!local in-interface=Local per-connection-classifier=both-addresses:2/0
action=mark-connection new-connection-mark=wan1_conn passthrough=yes
add chain=prerouting dst-address-type=!local in-interface=Local per-connection-classifier=both-addresses:2/1
action=mark-connection new-connection-mark=wan2_conn passthrough=yes
add chain=prerouting connection-mark=wan1_conn in-interface=Local action=mark-routing new-routing-mark=to_wan1
add chain=prerouting connection-mark=wan2_conn in-interface=Local action=mark-routing new-routing-mark=to_wan2
/ ip route
add dst-address=0.0.0.0/0 gateway=pppoe-out1 routing-mark=to_wan1 check-gateway=ping
add dst-address=0.0.0.0/0 gateway=pppoe-out2 routing-mark=to_wan2 check-gateway=ping
add dst-address=0.0.0.0/0 gateway=pppoe-out1 distance=1 check-gateway=ping
add dst-address=0.0.0.0/0 gateway=pppoe-out2 distance=2 check-gateway=ping
/ ip firewall nat
add chain=srcnat out-interface=pppoe-out1 action=masquerade
add chain=srcnat out-interface=pppoe-out2 action=masquerade