Konfigurasi Fail Over 3 WAN

Konfigurasi Fail Over bertujuan agar koneksi internet selalu online apabila terjadi down di salah satu isp maka koneksi internet akan di alihkan ke isp yang dijadikan backup/cadangan.

Topologi

# ip modem1 = 172.16.1.1 ---> ether1
# ip modem2 = 172.16.2.1 ---> ether2
# ip modem3 = 172.16.3.1 ---> ether3
 
/ip route
add check-gateway=ping comment=exit-1 distance=1 gateway=172.16.1.1 routing-mark=exit-1
add check-gateway=ping comment=exit-2 distance=1 gateway=172.16.2.1 routing-mark=exit-2
add check-gateway=ping comment=exit-3 distance=1 gateway=172.16.3.1 routing-mark=exit-3
 
add check-gateway=ping comment=jalur-1 distance=1 gateway=172.16.1.1 routing-mark=jalur-1
add check-gateway=ping comment=jalur-1 distance=2 gateway=172.16.2.1 routing-mark=jalur-1
add check-gateway=ping comment=jalur-1 distance=3 gateway=172.16.3.1 routing-mark=jalur-1
 
add check-gateway=ping comment=jalur-2 distance=1 gateway=172.16.2.1 routing-mark=jalur-2
add check-gateway=ping comment=jalur-2 distance=2 gateway=172.16.3.1 routing-mark=jalur-2
add check-gateway=ping comment=jalur-2 distance=3 gateway=172.16.1.1 routing-mark=jalur-2
 
add check-gateway=ping comment=jalur-3 distance=1 gateway=172.16.3.1 routing-mark=jalur-3
add check-gateway=ping comment=jalur-3 distance=2 gateway=172.16.2.1 routing-mark=jalur-3
add check-gateway=ping comment=jalur-3 distance=3 gateway=172.16.1.1 routing-mark=jalur-3
 
add check-gateway=ping comment=jalur-1 distance=1 gateway=172.16.1.1
add check-gateway=ping comment=jalur-2 distance=2 gateway=172.16.2.1
add check-gateway=ping comment=jalur-3 distance=3 gateway=172.16.3.1

Buat system schedule dengan nama “fail-over” interval=00:00:10 dan tambahkan pada on event script dibawah ini :

#jalur-1 cek
:if ([/ping address=8.8.8.8 interface=ether1 routing=exit-1 count=5] = 0) do={/ip route set [find comment=jalur-1 gateway=172.16.1.1 distance=1] distance=4} else={/ip route set [find comment=jalur-1 gateway=172.16.1.1 distance=4] distance=1};
 
#jalur-2 cek
:if ([/ping address=8.8.8.8 interface=ether2 routing=exit-2 count=5] = 0) do={/ip route set [find comment=jalur-2 gateway=172.16.2.1 distance=1] distance=4} else={/ip route set [find comment=jalur-2 gateway=172.16.2.1 distance=4] distance=1};
 
#jalur-3 cek
:if ([/ping address=8.8.8.8 interface=ether3 routing=exit-3 count=5] = 0) do={/ip route set [find comment=jalur-3 gateway=172.16.3.1 distance=1] distance=4} else={/ip route set [find comment=jalur-3 gateway=172.16.3.1 distance=4] distance=1};

https://wiki.mikrotik.com/wiki/Failover_Scripting

https://wiki.mikrotik.com/wiki/Advanced_Routing_Failover_without_Scripting