Fortigate Interface based routing

This is first time I heard a terminology "interface-based routing". Where did you see/hear about this? Generally "routing" is always interface based based on the destination IPs, which in L3 routers always need "routes" to know about the "next-hop" or "gateway", which must be bound to interfaces.
On the other hand, there is a term called "policy-based routing", which might be able to select a specific next-hop/gateway/interface to send packets to out of multiple options. It can be based on source interface/IPs or other factors.

Toshi

hi,

are you referring to ipsec interface based routing or interface based routing/L3 routing in general ?

if you are asking about routing in general, i recall upon studying for my Cisco certification that when you created a static route you had the option to only specify the network and next-hop, also add the outbound interface.

in Fortinet world, usually when you define a static route and point to the next hop ip address, the outbound interface will be automatically be selected if one exists in the same subnet with the next-hop