pfSense

in this example isn't monitoring HENETIPV6_TUNNELV6 good enough and just hide V4?

That's the idea. The interface has no v4 IP so it should have no v4 gateway, yet the system makes a v4 gateway entry (that shouldn't be there)

"just hide V4" is a work-around Michael.

We're better than that.

let's make it work right.

[details deleted]

(I love having my system at home detailed in public...)

Looks like this GIF (and also GRE) case could be fixed by some better testing in source:src/etc/inc/interfaces.inc#L5573 and source:src/etc/inc/interfaces.inc#L5605 (interface_has_gateway() and interface_has_gatewayv6()). In the case of gif/gre it should check the interface address to make sure the interface has an address of the desired type. That should be a safe test since it is statically configured in the gif settings, unlike the other types that can change.

Here is a quick fix that works to eliminate the bum entry on GIF/GRE: https://gist.github.com/jim-p/a1b92a97e4a9ee7e30fb