Configuring the ADVPN policy route on the FortiGate hub
In ADVPN, the hub devices forward the data packets to the spokes before the shortcut is established. To prevent the hub from using ECMP to send traffic to the spokes, create and implement a route policy.
To configure the policy route in FortiManager:
config router policy
edit 1
set input-device "OL_MPLS_0"
set output-device "OL_MPLS_0"
next
edit 2
set input-device "OL_INET_0"
set output-device "OL_INET_0"
next
end