A strange ethernet frame

0x33 33 0 0 0 16 52 54 0 12 34 56 “86 dd” 60 0 0 0 0 24 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ff 2 0 0 0 0 0 0 0 0 0 0 0 0 0 16 3a 0 5 2 0 0 1 0 8f 0 3b 22 0 0 0 1 4 0 0 0 ff 2 0 0 0 0 0 0 0 0 0 1 ff 12 34 56

What does "86 dd" mean?

Update: 86 dd means IP V6. :)