NAME

  F_Stub - Stub Fragment Header

TARGET

  Host and Router

SYNOPSIS

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

INITIALIZATION

  None

TEST PROCEDURE

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

  1. Send Echo Request (fragment offset = 0, MFlag = 0)
  2. Wait Echo Reply or NS
  3. If NS received then send NA, and wait Echo Reply again
  4. Receive Echo Reply

  Echo Request Data (original) is:

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 15
            NextHeader         = 58 (ICMPv6)
            SourceAddress      = Tester Link Local Address
            DestinationAddress = Target Link Local Address

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

  Echo Request Data (Offset 0, MFlag 0) is:

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 24
            NextHeader         = 44 (Fragment Header)
            SourceAddress      = Tester Link Local Address
            DestinationAddress = Target Link Local Address

        Fragment Header
            NextHeader         = 58 (ICMPv6)
            FragmentOffset     = 0
            MFlag              = 0
            Identification     = 32bit (Automatic generation)

        Payload
            data               = 16 octets from the head of ICMP Echo request

JUDGEMENT

  PASS: Echo Reply Received

        IPv6 Header
            Version             = 6
            Traffic Class       = 0
            FlowLabel           = 0
            PayloadLength       = 16
            NextHeader          = 58 (ICMPv6)
            SourceAddress       = Target Link Local Address
            Destination Address = Tester Link Local Address

        ICMP Echo Reply
            Type           = 129 (Echo Reply)
            Code           = 0
            Checksum       = (auto)
            Identifier     = (same as Echo Request)
            SequenceNumber = (same as Echo Request)
            PayloadData    = (same as Echo Request)

REFERENCE

RFC 2460 - IPv6 Specification