Now we need to explicitly create traffic_rule name before adding entities into it It would be more convenient to create it automatically sudo fcli set traffic_rule udp_ttl_62 ttls 62 set command returned error: Entity udp_ttl_62 does not exist pavel@pavel:~$ sudo fcli set traffic_rule udp_ttl_62 Correctly created new rule with name udp_ttl_62 pavel@pavel:~$ sudo fcli set traffic_rule udp_ttl_62 ttls 62 Configuration updated correctly