networking.interfaces.<name>.ipv6.routes.*.type

Type of the route. See the Route types section in the ip-route(8) manual page for the details.

Note that prohibit, blackhole, unreachable, and throw cannot be configured per device, so they are not available here. Similarly, nat hasn't been supported since kernel 2.6.

Type
null or one of "unicast", "local", "broadcast", "multicast"
Default
null
Declared
<nixpkgs/nixos/modules/tasks/network-interfaces.nix>