how to make port forwarding

how to make port forwarding

3 ADSL = pppoe-out1, pppoe-out2, pppoe-out3
1 LAN = 192.168.168.1
SERVER = 192.168.168.2 TCP and UDP 80

Anything is work without port forwarding. Could you tell me what is the problem.

/ip route
add comment="pppoe-out1" check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=pppoe-out1 routing-mark=1st_route scope=30 target-scope=10
add check-gateway=ping disabled=no distance=11 dst-address=0.0.0.0/0 gateway=pppoe-out1 scope=30 target-scope=10

add comment="pppoe-out2" check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=pppoe-out2 routing-mark=2st_route scope=30 target-scope=10
add check-gateway=ping disabled=no distance=12 dst-address=0.0.0.0/0 gateway=pppoe-out2 scope=30 target-scope=10

add comment="pppoe-out3" check-gateway=ping disabled=no distance=1 dst-address=0.0.0.0/0 gateway=pppoe-out3 routing-mark=3st_route scope=30 target-scope=10
add check-gateway=ping disabled=no distance=13 dst-address=0.0.0.0/0 gateway=pppoe-out3 scope=30 target-scope=10

/ip firewall mangle
add action=mark-connection chain=prerouting comment=1st disabled=no in-interface=lan new-connection-mark=1st_conn passthrough=yes per-connection-classifier=src-address-and-port:3/0
add action=mark-connection chain=prerouting disabled=no dst-port=80 in-interface=pppoe-out1 new-connection-mark=1st_conn passthrough=yes protocol=tcp
add action=mark-connection chain=prerouting disabled=no dst-port=80 in-interface=pppoe-out1 new-connection-mark=1st_conn passthrough=yes protocol=udp
add action=mark-routing chain=prerouting connection-mark=1st_conn disabled=no in-interface=lan new-routing-mark=1st_route passthrough=no

add action=mark-connection chain=prerouting comment=2st disabled=no in-interface=lan new-connection-mark=2st_conn passthrough=yes per-connection-classifier=src-address-and-port:3/1
add action=mark-connection chain=prerouting disabled=no dst-port=80 in-interface=pppoe-out2 new-connection-mark=2st_conn passthrough=yes protocol=tcp
add action=mark-connection chain=prerouting disabled=no dst-port=80 in-interface=pppoe-out2 new-connection-mark=2st_conn passthrough=yes protocol=udp
add action=mark-routing chain=prerouting connection-mark=2st_conn disabled=no in-interface=lan new-routing-mark=2st_route passthrough=no

add action=mark-connection chain=prerouting comment=3st disabled=no in-interface=lan new-connection-mark=3st_conn passthrough=yes per-connection-classifier=src-address-and-port:3/2
add action=mark-connection chain=prerouting disabled=no dst-port=80 in-interface=pppoe-out3 new-connection-mark=3st_conn passthrough=yes protocol=tcp
add action=mark-connection chain=prerouting disabled=no dst-port=80 in-interface=pppoe-out3 new-connection-mark=3st_conn passthrough=yes protocol=udp
add action=mark-routing chain=prerouting connection-mark=3st_conn disabled=no in-interface=lan new-routing-mark=3st_route passthrough=no

/ip firewall nat
add action=masquerade chain=srcnat comment=1st disabled=no out-interface=pppoe-out1
add action=dst-nat chain=dstnat disabled=no in-interface=pppoe-out1 to-addresses=192.168.168.2

add action=masquerade chain=srcnat comment=2st disabled=no out-interface=pppoe-out2
add action=dst-nat chain=dstnat disabled=no in-interface=pppoe-out2 to-addresses=192.168.168.2

add action=masquerade chain=srcnat comment=3st disabled=no out-interface=pppoe-out3
add action=dst-nat chain=dstnat disabled=no in-interface=pppoe-out3 to-addresses=192.168.168.2