HHO_Pad1_IN - Options Processing, Hop-by-Hop Options Header - Intermediate Node (Pad1 Option)
Router
HHO_Pad1_IN.seq [-tooloption ...] -pkt HHO_Pad1_IN.def
-tooloption : v6eval tool option
None
Tester Target Tester
(Link0) (Link1)
| | |
|-------------------------->| |
| Echo Request | |
| | |
| |-------------------------->|
| | Neighbor Solicitation |
| | |
| |<--------------------------|
| | Neighbor Advertisement |
| | |
| |-------------------------->|
| | Echo Request |
| | |
v v v
1. Send Echo Request to Link0
2. Wait forwarded Echo Request or NS on Link1
3. If NS received then send NA, and wait forwarded Echo Request again
4. Receive forwarded Echo Request
Echo Request Data is:
IPv6 Header
Version = 6
Traffic Class = 0
FlowLabel = 0
PayloadLength = 16
NextHeader = 0 (Hop-by-Hop Options Header)
SourceAddress = Tester Global Address (Link0)
DestinationAddress = Tester Global Address (Link1)
Hop-by-Hop Options Header
NextHeader = 58 (ICMPv6)
HeaderExtLength = 0
OptionType = 0 (Pad1 Option)
OptionType = 0 (Pad1 Option)
OptionType = 0 (Pad1 Option)
OptionType = 0 (Pad1 Option)
OptionType = 0 (Pad1 Option)
OptionType = 0 (Pad1 Option)
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: forwarded Echo Request Received
RFC 2460 - IPv6 Specification
perldoc V6evalTool