LoadBalancing PPC 3 Line LPSE Wajo

/ip address
add address=192.168.25.1/30 disabled=no interface=WAN1 network=192.168.25.0
add address=192.168.26.1/30 disabled=no interface=WAN2 network=192.168.26.0
add address=192.168.27.1/30 disabled=no interface=WAN3 network=192.168.27.0
add address=192.168.40.1/25 disabled=no interface=LAN network=192.168.40.0

/ip route
add check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ISP1 routing-mark=to_LINE1 scope=30 \
    target-scope=10
add check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ISP2 routing-mark=to_LINE2 scope=30 \
    target-scope=10
add check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ISP3 routing-mark=to_LINE3 scope=30 \
    target-scope=10
add check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ISP1 scope=30 target-scope=10
add check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ISP2 scope=30 target-scope=10
add check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ISP3 scope=30 target-scope=10

/ip firewall mangle
add action=mark-connection chain=input disabled=no in-interface=WAN1 new-connection-mark=LINE1_conn passthrough=yes
add action=mark-connection chain=input disabled=no in-interface=WAN2 new-connection-mark=LINE2_conn passthrough=yes
add action=mark-connection chain=input disabled=no in-interface=WAN3 new-connection-mark=LINE3_conn passthrough=yes
add action=mark-routing chain=output connection-mark=LINE1_conn disabled=no new-routing-mark=to_LINE1 passthrough=yes
add action=mark-routing chain=output connection-mark=LINE2_conn disabled=no new-routing-mark=to_LINE2 passthrough=yes
add action=mark-routing chain=output connection-mark=LINE3_conn disabled=no new-routing-mark=to_LINE3 passthrough=yes
add action=accept chain=prerouting disabled=no dst-address=192.168.25.0/30 in-interface=LAN
add action=accept chain=prerouting disabled=no dst-address=192.168.26.0/30 in-interface=LAN
add action=accept chain=prerouting disabled=no dst-address=192.168.27.0/30 in-interface=LAN
add action=mark-connection chain=prerouting disabled=no dst-address-type=!local in-interface=LAN new-connection-mark=\
    LINE1_conn passthrough=yes per-connection-classifier=both-addresses-and-ports:3/0
add action=mark-connection chain=prerouting disabled=no dst-address-type=!local in-interface=LAN new-connection-mark=\
    LINE2_conn passthrough=yes per-connection-classifier=both-addresses-and-ports:3/1
add action=mark-connection chain=prerouting disabled=no dst-address-type=!local in-interface=LAN new-connection-mark=\
    LINE3_conn passthrough=yes per-connection-classifier=both-addresses-and-ports:3/2
add action=mark-routing chain=prerouting connection-mark=LINE1_conn disabled=no in-interface=LAN new-routing-mark=to_LINE1 \
    passthrough=yes
add action=mark-routing chain=prerouting connection-mark=LINE2_conn disabled=no in-interface=LAN new-routing-mark=to_LINE2 \
    passthrough=yes
add action=mark-routing chain=prerouting connection-mark=LINE3_conn disabled=no in-interface=LAN new-routing-mark=to_LINE3 \
    passthrough=yes