EX_HdrProcessingOrder_HDF_00M - Extension Header Processing Order (Destination Options Header precedes Fragment Header, Error from Fragment Header)
Host and Router
EX_HdrProcessingOrder_HDF_00M.seq [-tooloption ...] -pkt EX_HdrProcessingOrder_HDF_00M.def
-tooloption : v6eval tool option
None
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
Echo Request Data is:
IPv6 Header
Version = 6
Traffic Class = 0
FlowLabel = 0
PayloadLength = 37
NextHeader = 0 (Hop-by-Hop Options Header)
SourceAddress = Tester Link Local Address
DestinationAddress = Target Link Local Address
Hop-by-Hop Options Header
NextHeader = 60 (Destination Options Header)
HeaderExtLength = 0
OptionType = 1 (PadN)
OptDataLength = 4
pad = {0, 0, 0, 0}
Destination Options Header
NextHeader = 44 (Fragment Header)
HeaderExtLength = 0
OptionType = 0x07 (Unrecognized Option, Type 00)
OptDataLength = 4 (for 8 octets alignment)
data = {0, 0, 0, 0}
Fragment Header
NextHeader = 58 (ICMPv6)
FragmentOffset = 0
MFlag = 1
FragmentID = 102
ICMP Echo Request
Type = 128 (Echo Request)
Code = 0
Checksum = (auto)
Identifier = 0xffff
SequenceNumber = 1
PayloadData = {1, 2, 3, 4, 5}
PASS: ICMP Error Received
IPv6 Header
Version = 6
Traffic Class = 0
FlowLabel = 0
PayloadLength = 85
NextHeader = 58 (ICMPv6)
SourceAddress = Target Link Local Address
Destination Address = Tester Link Local Address
ICMP Error
Type = 4 (Parameter Problem)
Code = 0 (erroneous header field encountered)
Checksum = (auto)
Pointer = 4 (Payload Length field in IPv6 header)
PayloadData = (Sent Packet)
RFC 2460 - IPv6 Specification
perldoc V6evalTool