1:INPUT,FORWARD,OUTPUT 2-m icmpv6;;FAIL 3-p ipv6-icmp -m icmp6 --icmpv6-type 1/0;=;OK 4-p ipv6-icmp -m icmp6 --icmpv6-type 2;=;OK 5# cannot use option twice: 6-p ipv6-icmp -m icmp6 --icmpv6-type no-route --icmpv6-type packet-too-big;;FAIL 7