IPv6 : the next header

The IPv6 header, shown in the IPv6 chapter of Computer Networking: Principles, Protocols and Practice contains a Next Header field that usually indicates the protocol used for the packet payload.


Next Header for a packet carrying a UDP segment

Can you infer the Next Header field of this packet knowing that it contains a UDP segment.

# Length Resumé Status
0 48 bytes <UDP: >  

0000  600f35d30028??ff  200106a8308f0002  
0010  48e995ae3a92922d  200106a830810001  
0020  0000000000000053  c3c7003500285a49  

0000  `.5Ó.(?ÿ ..¨0...
0010  Hé.®:..- ..¨0...
0020  .......SÃÇ.5.(ZI
  • IPv6:
    • Version: 6
    • Traffic Class UB: 0
    • Traffic Class LB: 0
    • Flow Label UB: 15
    • Flow Label LB: 13779
    • Payload Length: 40
    • Next Header:
    • Hop Limit: 255
    • Source Address: 2001:6a8:308f:2:48e9:95ae:3a92:922d
    • Destination Address: 2001:6a8:3081:1::53
    • Payload: UDP
      • Source Port: 50119
      • Destination Port: 53
      • Length: 40
      • Checksum: 23113

Information

Author(s) Olivier Bonaventure
Deadline No deadline
Submission limit No limitation
Category Tags IPv6

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