struct device_prefix* interface_ip_add_device_prefix(struct interface *iface,
struct in6_addr *addr, uint8_t length, time_t valid_until, time_t preferred_until,
struct device_prefix* interface_ip_add_device_prefix(struct interface *iface,
struct in6_addr *addr, uint8_t length, time_t valid_until, time_t preferred_until,