For a specific route entry associated with a service, indicates whether packets matching the destination address in cssgServiceRouteAddr are permitted or denied. This is the actual allow/block decision behind a service's route-based access control, meaning a service can grant broad access to a network while carving out specific denied sub-ranges, or vice versa, by combining multiple route entries with different permission values. A 'family-safe' service might include a route entry for a known tracker network's address range with cssgServiceRoutePermission set to deny(2), blocking just that destination while permit(1) entries cover the rest of the internet.