2009-06-02 2021-01-04 Susan Hares, Robert Raszuk 0 Reserved 1-127 Specification Required 128-254 Expert Review 255 Reserved 0 Reserved Reserved 1 Destination Prefix Destination IPv6 Prefix 2 Source Prefix Source IPv6 Prefix 3 IP Protocol Upper-Layer Protocol 4 Port Port 5 Destination Port Destination Port 6 Source Port Source Port 7 ICMP Type ICMPv6 Type 8 ICMP Code ICMPv6 Code 9 TCP Flags TCP Flags 10 Packet Length Packet Length 11 DSCP DSCP 12 Fragment Fragment 13 Unassigned Flow Label 14-254 Unassigned Unassigned 255 Reserved Reserved