请教高手，ADSL双线负载均衡如何设置端口映射

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请教高手，ADSL双线负载均衡如何设置端口映射

是ros 2.9.27
脚本如下：
/ip address add address=192.168.100.188/255.255.255.0 interface=lan comment=lan
/ip dns set primary-dns=202.96.69.38 secondary-dns=202.96.64.68 allow-remote-requests=yes
/ip firewall mangle add chain=forward protocol=tcp tcp-flags=syn action=change-mss new-mss=1440
/interface pppoe-client add name="pppoe-out1" interface=Wan1 user="123@163" password="123456" add-default-route=no disabled=no
/interface pppoe-client enable pppoe-out1
/ip address add address=58.58.58.1/32 interface=pppoe-out1 comment="1"
/ip route add gateway=58.58.58.1 routing-mark=1 comment="1"
/ip firewall mangle add chain=prerouting in-interface=Lan connection-state=new nth=1,1,0 action=mark-connection new-connection-mark=1 passthrough=yes disabled=no
/ip firewall mangle add chain=prerouting in-interface=Lan connection-mark=1 action=mark-routing new-routing-mark=1 passthrough=no disabled=no
/ip firewall nat add chain=srcnat connection-mark=1 action=src-nat to-addresses=58.58.58.1 to-ports=0-65535 comment="1" disabled=no
/interface pppoe-client add name="pppoe-out2" interface=Wan2 user="655@163" password="000000" add-default-route=no disabled=no
/interface pppoe-client enable pppoe-out2
/ip address add address=58.58.58.2/32 interface=pppoe-out2 comment="2"
/ip route add gateway=58.58.58.2 routing-mark=2 comment="2"
/ip firewall mangle add chain=prerouting in-interface=Lan connection-state=new nth=1,1,1 action=mark-connection new-connection-mark=2 passthrough=yes disabled=no
/ip firewall mangle add chain=prerouting in-interface=Lan connection-mark=2 action=mark-routing new-routing-mark=2 passthrough=no disabled=no
/ip firewall nat add chain=srcnat connection-mark=2 action=src-nat to-addresses=58.58.58.2 to-ports=0-65535 comment="2" disabled=no


:local assign-address
:local new-address
:local status
:local x
:set x 2
:for i from=1 to=$x do={
    :set status [/interface get [/interface find  name=("pppoe-out" . $i)] running]
    :if ($status=true) do={
     :set new-address [/ip address get [/ip address find dynamic=yes interface=("pppoe-out" . $i)] address]
     :set new-address [:pick $new-address 0 ([:len $new-address] -3)]
     :set assign-address [/ip address get [/ip address find dynamic=no interface=("pppoe-out" . $i)] address]
     :set assign-address [:pick $assign-address 0 ([:len $assign-address] -3)]
        :if ($assign-address != $new-address) do={ /ip address set [/ip address find comment=$i] address=$new-address network=$new-address broadcast=$new-address
        /ip route set [/ip route find comment=$i] gateway=$new-address
        /ip fir nat set [/ip fir nat find comment=$i] to-addresses=$new-address
        /ip route set [/ip route find comment=$i] gateway=$new-address

做完无法设置端口映射