NAME

  EX_NH_Zero - Next Header Zero

TARGET

  Host and Router

SYNOPSIS

  EX_NH_Zero.seq [-tooloption ...] -pkt EX_NH_Zero.def
    -tooloption : v6eval tool option

INITIALIZATION

  None

TEST PROCEDURE

  Tester                      Target
    |                           |
    |-------------------------->|
    |   Echo Request            |
    |                           |
    |                           |
    |<--------------------------|
    |   Neighbor Solicitation   |
    |                           |
    |                           |
    |-------------------------->|
    |   Neighbor Advertisement  |
    |                           |
    |                           |
    |<--------------------------|
    |   ICMP Error              |
    |                           |
    v                           v

  1. Send Echo Request
  2. Wait ICMP Error or NS
  3. If NS received then send NA, and wait ICMP Error again
  4. Receive ICMP Error

  Test Packet to Target Data is:

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 32
            NextHeader         = 0 (Hop-by-Hop Options Header)
            SourceAddress      = Tester Address
            DestinationAddress = Target Address

        Hop-by-Hop Options Header
            NextHeader      = 0 (Hop-by-Hop Options Header)
            HeaderExtLength = 0
            OptionType      = 1 (PadN)
            OptDataLength   = 4
            pad             = {0, 0, 0, 0}

        Hop-by-Hop Options Header
            NextHeader      = 58 (ICMPv6)
            HeaderExtLength = 0
            OptionType      = 1 (PadN)
            OptDataLength   = 4
            pad             = {0, 0, 0, 0}

        ICMP Echo Request
            Type           = 128 (Echo Request)
            Code           = 0
            Checksum       = (auto)
            Identifier     = 0xffff
            SequenceNumber = 1
            PayloadData    = {1, 2, 3, 4, 5, 6, 7, 8}

JUDGEMENT

  PASS: Echo Reply not received, but ICMP Error received

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 80
            NextHeader         = 58 (ICMPv6)
            SourceAddress      = Target Address
            DestinationAddress = Tester Address

        ICMP Error
            Type           = 4 (Parameter Problem)
            Code           = 1 (unrecognized Next Header type encountered)
            Checksum       = (auto)
            Pointer        = 40 (Offset to Next Header type)
            PayloadData    = (Sent Packet)

REFERENCE

RFC 2460 - IPv6 Specification