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Mikrotik Seperate LAN to Different WAN

In this tutorial, i will route LAN1 through WAN1, and route LAN2 through WAN2

1. Assign IP on Mikrotik interface

Example: WAN1:


2. Filter the packet with Mangle

i will copy and past the script, because it is faster
you can manually, check your configuration on the User Interface later.

/ip firewall mangle
add chain=input in-interface=WAN1 action=mark-connection new-connection-mark=WAN1_conn
add chain=input in-interface=WAN2 action=mark-connection new-connection-mark=WAN2_conn
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= action=accept in-interface=LAN1
add chain=prerouting dst-address= action=accept in-interface=LAN2
add chain=prerouting dst-address-type=!local in-interface=LAN1 action=mark-connection new-connection-mark=WAN1_conn passthrough=yes
add chain=prerouting dst-address-type=!local in-interface=LAN2 action=mark-connection new-connection-mark=WAN2_conn passthrough=yes
add chain=prerouting connection-mark=WAN1_conn in-interface=LAN1 action=mark-routing new-routing-mark=to_WAN1 passthrough=yes
add chain=prerouting connection-mark=WAN2_conn in-interface=LAN2 action=mark-routing new-routing-mark=to_WAN2 passthrough=yes

3. Add load balance route and backup route

/ip route
add dst-address= gateway= routing-mark=to_WAN1 check-gateway=ping
add dst-address= gateway= routing-mark=to_WAN2 check-gateway=ping
add dst-address= gateway= distance=1 check-gateway=ping
add dst-address= gateway= distance=2 check-gateway=ping

4. Add nat for WAN1 and WAN2

/ip firewall nat
add chain=srcnat out-interface=WAN1 action=masquerade
add chain=srcnat out-interface=WAN2 action=masquerade

now we can test the connection on LAN1 and LAN2

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