[PATCH] interface: reapply routes on l3 link up

[Jonas Lochmann]

Am Mon, May 25, 2026 at 12:28:32AM +0300, schrieb Ruslan Isaev:
> Proto interfaces such as WireGuard can lose routes from the kernel FIB
> after a link flap while netifd still keeps them marked as enabled.
> Because of that, the route stays visible in ifstatus but disappears from
> ip route until the protocol is restarted.

I do not understand this. In case of wg, link flaps do not exist, there
is just a new handshake if a connection was interrupted (also during
regular operation).