How "Gateway" concept works

[pmladenov]

Hello,

I would like to understand the "Gateway" concept in OpnSense (I believe I'm missing something fundamental).
I have 2 static routes for exact the same destination network (let say 192.168.0.0/24) via two different single gateways: GW1 (1.1.1.1) with priority 10 and GW2 (2.2.2.2) with priority of 20.

Because the priority of GW1 is lower than GW2 that should mean (as per my understandings) that GW1 should be the preferred exit point for 192.168.0.0/24 (which seems to be the case, based on netstat -rnl4 output, 192.168.0.0/24 is pointing to 1.1.1.1).

I've also enabled the monitoring feature of both single gateways (using the IP address of the next-hop => for GW1 - 1.1.1.1 and for GW2 - 2.2.2.2)

What is the correct behavior if for some reason GW1 become unreachable (IP address 1.1.1.1 is not reachable)?
My assumption is that it will be displayed as offline (which it is) and because it's offline the entry in the routing table will not point to 1.1.1.1 (GW1) anymore, but it will point to 2.2.2.2 (GW2), because 2.2.2.2 is still reachable, although it has worst priority.  However that's not what I'm seeing. Despite of GW1 is offline, 192.168.0.0/24 is still pointing to it (1.1.1.1) and not to GW2 (2.2.2.2).

What I'm missing here?

Regards,
Plamen