ini work ya ges (harusnya :v)

ISP2 ===========================
ip dhcp-client add interface=ether1 use-peer-dns=yes disable=no
ip address add address=128.X.0.1/18 interface=ether2
ip firewall nat add chain=srcnat out-interface=ether1 action=masquarade
ip dhcp-server setup
  > ether2


Load Balancing ===========================

Note: ip isp1 = 192.168.43.0 / 172.16.0.0 (tergantung source internet)

/ ip address
add address=192.168.29.1/28 network=192.168.29.0 broadcast=192.168.29.255 interface=ether3

/ip 
dhcp-client add interface=ether1 add-default-route=no disabled=no
dhcp-client add interface=ether2 add-default-route=no disabled=no

/ ip firewall nat
add chain=srcnat out-interface=ether1 action=masquerade comment=nat-isp1
add chain=srcnat out-interface=ether2 action=masquerade comment=nat-isp2

/ ip firewall mangle
add chain=prerouting dst-address=192.168.29.0/28 action=accept
add chain=prerouting dst-address=192.168.43.0/24 action=accept
add chain=prerouting dst-address=128.29.0.0/18 action=accept

add chain=prerouting in-interface=ether1 connection-mark=no-mark action=mark-connection new-
connection-mark=ISP1

add chain=prerouting in-interface=ether2 connection-mark=no-mark action=mark-connection new-
connection-mark=ISP2

/ ip firewall mangle
add chain=prerouting in-interface=ether3 connection-mark=no-mark dst-address-type=!local
per-connection-classifier=both-addresses:2/0 action=mark-connection new-connection-mark=ISP1

add chain=prerouting in-interface=ether3 connection-mark=no-mark dst-address-type=!local
per-connection-classifier=both-addresses:2/1 action=mark-connection new-connection-mark=ISP2

/ ip firewall mangle
add chain=prerouting connection-mark=ISP1 in-interface=ether3 action=mark-routing
new-routing-mark=to_ISP1
add chain=prerouting connection-mark=ISP2 in-interface=ether3 action=mark-routing
new-routing-mark=to_ISP2

add chain=output connection-mark=ISP1 action=mark-routing new-routing-mark=to_ISP1
add chain=output connection-mark=ISP2 action=mark-routing new-routing-mark=to_ISP2

/ ip route
add dst-address=0.0.0.0/0 gateway=192.168.43.1 routing-mark=to_ISP1 check-gateway=ping distance=1
add dst-address=0.0.0.0/0 gateway=128.29.0.1 routing-mark=to_ISP2 check-gateway=ping distance=1

add dst-address=0.0.0.0/0 gateway=192.168.43.1 routing-mark=to_ISP2 check-gateway=ping distance=2
add dst-address=0.0.0.0/0 gateway=128.29.0.1 routing-mark=to_ISP1 check-gateway=ping distance=2

Settingan VMnet1 di Control Panel ===========================
ip address: 192.168.X.2
subnet: otomatis (tab)
gateway: 192.168.X.1

Note: ip isp1 = 192.168.43.0 / 172.16.0.0 (tergantung source internet)
preferrd dns server: 192.168.43.1
alternate snd server: 128.X.0.1

Credit: Unknown