IPv6 Packet Header

40-byte fixed IPv6 header laid out as bit fields.

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columns 8
  V["Version (4)"]:1 TC["Traffic class (8)"]:2 FL["Flow label (20)"]:5
  PL["Payload length (16)"]:4 NH["Next header (8)"]:2 HL["Hop limit (8)"]:2
  Src["Source address (128 bits)"]:8
  Dst["Destination address (128 bits)"]:8
classDef hd fill:#1e3a8a,color:#fff;
classDef ad fill:#dbeafe,color:#0f172a;
class V,TC,FL,PL,NH,HL hd
class Src,Dst ad