NAME

  F_Reassembly_reverse - Fragment Reassembly (All Fragments are Valid, reverse order)


TARGET

  Host and Router


SYNOPSIS

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


INITIALIZATION

  None


TEST PROCEDURE

  Tester                      Target
    |                           |
    |-------------------------->|
    |   Echo Request (3rd)      |
    |                           |
    |-------------------------->|
    |   Echo Request (2nd)      |
    |                           |
    |-------------------------->|
    |   Echo Request (1st)      |
    |                           |
    |<--------------------------|
    |   Neighbor Solicitation   |
    |                           |
    |-------------------------->|
    |   Neighbor Advertisement  |
    |                           |
    |<--------------------------|
    |   Echo Reply              |
    |                           |
    |                           |
    v                           v
  1. Send Echo Request (3rd fragment)
  2. Send Echo Request (2nd fragment)
  3. Send Echo Request (1st fragment)
  4. Wait Echo Reply or NS
  5. If NS received then send NA, and wait Echo Reply again
  6. Receive Echo Reply
  Echo Request Data (original) is:
        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 88
            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    = data repeat{0x1, 40}
                             data repeat{0x2, 40}
  Echo Request Data (3rd fragment) is:
        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 32
            NextHeader         = 44 (Fragment Header)
            SourceAddress      = Tester Link Local Address
            DestinationAddress = Target Link Local Address
        Fragment Header
            NextHeader         = 58 (ICMPv6)
            FragmentOffset     = 8
            MFlag              = 0
            Identification     = 32bit (Automatic generation)
        Payload
            data               = 24 octets from the back of ICMP Echo request
  Echo Request Data (2nd fragment) is:
        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 40
            NextHeader         = 44 (Fragment Header)
            SourceAddress      = Tester Link Local Address
            DestinationAddress = Target Link Local Address
        Fragment Header
            NextHeader         = 58 (ICMPv6)
            FragmentOffset     = 4
            MFlag              = 1
            Identification     = 32bit (Automatic generation)
        Payload
            data               = 32 octets from the head of ICMP Echo request
  Echo Request Data (1st fragment) is:
        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 40
            NextHeader         = 44 (Fragment Header)
            SourceAddress      = Tester Link Local Address
            DestinationAddress = Target Link Local Address
        Fragment Header
            NextHeader         = 58 (ICMPv6)
            FragmentOffset     = 0
            MFlag              = 1
            Identification     = 32bit (Automatic generation)
        Payload
            data               = 32 octets from the head of ICMP Echo request


JUDGEMENT

  PASS: Echo Reply Received
        IPv6 Header
            Version             = 6
            Traffic Class       = 0
            FlowLabel           = 0
            PayloadLength       = 88
            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


SEE ALSO

  perldoc V6evalTool