DUAL WAN LOAD BALANCING

DUAL WAN LOAD BALANCING 

When We have two ISP and we want two merge these two ISP and get one out put as single out put like 4mb + 4mb= 8mb

Paste this script to Terminal after correcting Name of interfaces according to script.
DSL MODEM IP’S
DSL MODEM 1 = 192.168.1.1
DSL MODEM 2 = 192.168.2.1

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/ip address add address=192.168.0.1/24 network=192.168.0.0 broadcast=192.168.0.255 interface=Local add address=192.168.1.2/24 network=192.168.1.0 broadcast=192.168.1.255 interface=WAN1 add address=192.168.2.2/24 network=192.168.2.0 broadcast=192.168.2.255 interface=WAN2   /ip dns set allow-remote-requests=yes cache-max-ttl=1w cache-size=5000KiB max-udp-packet-size=512 servers=8.8.8.8   /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=192.168.1.0/24 action=accept in-interface=Local add chain=prerouting dst-address=192.168.2.0/24 action=accept in-interface=Local   add chain=prerouting dst-address-type=!local in-interface=Local per-connection-classifier=both-addresses-and-ports: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-and-ports: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=192.168.1.1 routing-mark=to_WAN1 check-gateway=ping add dst-address=0.0.0.0/0 gateway=192.168.2.1 routing-mark=to_WAN2 check-gateway=ping   add dst-address=0.0.0.0/0 gateway=192.168.1.1 distance=1 check-gateway=ping add dst-address=0.0.0.0/0 gateway=192.168.2.1 distance=2 check-gateway=ping   /ip firewall nat add chain=srcnat out-interface=WAN1 action=masquerade add chain=srcnat out-interface=WAN2 action=masquerade

All Done ! Now Test the link by putting user load, the more multiple users load you put on it, the better Load Balance result you will get

PCC WITH UN-EQUAL WAN LINKS

If you have Un-Equal WAN Links, for example WAN,1 is of 4MB and WAN,2 is of 8 Mb, and you want to force MT to use WAN42link more then other because of its capacity, Then you have to Add more PCC rules assigning the same two marks to a specific link i.e WAN2 , something like

Code:

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add chain=prerouting dst-address-type=!local in-interface=Local per-connection-classifier=both-addresses-and-ports: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-and-ports:2/1 action=mark-connection new-connection-mark=WAN2_conn passthrough=yes add chain=prerouting dst-address-type=!local in-interface=Local per-connection-classifier=both-addresses-and-ports:2/2 action=mark-connection new-connection-mark=WAN2_conn passthrough=yes

PCC WITH HOTSPOT (Reference)

1	/ip firewall nat add action=accept chain=pre-hotspot disabled=no dst-address-type=!local hotspot=auth