HHO_MSB01_EN - Options Processing, Hop-by-Hop Options Header - End Node (Most Significant Bits 01)
Host and Router
None
Verify that a node properly processes both known and unknown options, and acts in accordance with highest order two bits of the option.
TN NUT
| |
|-------------------------->|
| Echo Request |
| |
| |
| (<----------------------) |
| No Packet |
| |
| |
v v
1. TN transmits an Echo Request that has a Hop-by-Hop Options header with an unknown Option Type of 71.
2. Observe the NUT.
Echo Request Data is:
IPv6 Header
Version = 6
Traffic Class = 0
FlowLabel = 0
PayloadLength = 16
NextHeader = 0 (Hop-by-Hop Options Header)
SourceAddress = TN Link Local Address
DestinationAddress = NUT Link Local Address
Hop-by-Hop Options Header
NextHeader = 58 (ICMPv6)
HeaderExtLength = 0
OptionType = 0x47 (unknown, msb: 01)
OptDataLength = 4
data = {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}
PASS: The NUT must not generate any packets sent to TN. THe Echo Request is discarded.
Common Test Cleanup
perldoc V6evalTool