route_allowed_ips on on openwrt

[Emanuele Bernardi]

Hi all, I'm not sure if is the right place to ask about this..
I'm Configuring wireguard on openwrt and in the peer configuration i 
came across these specs
(https://openwrt.org/docs/guide-user/network/tunneling_interface_protocols#protocol_wireguard_wireguard_vpn)
and the  "route_allowed_ips" option, but enabling it does not create a 
route and i must add it manually.
Could it be an issue with the openwrt or wireguard?

Thank you