NAME

    DH_BadHdrExtLen - Bad Hdr Ext Len in Destination Options Header

TARGET

    Host and Router

INITIALIZATION

    1. Check Link0 Link Local address Reachability
    2. Check support of Destination Options Header

TEST PROCEDURE

    1. Send bad Echo Request
    2. Wait 5 sec.
    3. Send Echo Request
    4. If NS received then send NA, and wait Echo Reply again
    5. Receive Echo Reply

    Bad Echo Request Data is:

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 24
            NextHeader         = 60 (Destination Options Header)
            HopLimit           = 64
            SourceAddress      = Tester Link Local Address
            DestinationAddress = Target Link Local Address

        Destination Options Header
            NextHeader         = 58 (ICMPv6)
            HeaderExtLength    = 100 (It' bad. True value is 0.)

            Opt_PadN
                OptionType     = 1
                OptDataLength  = 4
                pad            = {0, 0, 0, 0}

        ICMPv6 Echo Request
            Type               = 128 (Echo Request)
            Code               = 0
            Checksum           = (auto)
            Identifier         = 0
            SequenceNumber     = 0
            PayloadData        = {1, 2, 3, 4, 5, 6, 7, 8}

JUDGMENT

    PASS : echo reply packet received.

    FAIL : don't received echo reply packet.

SEE ALSO

    perldoc V6evalTool