HL_ZeroToHost - check Hop Limit Zero to Host
Host and Router
HL_ZeroToHost.seq [-tooloption ...] -pkt HL_ZeroToHost.def
-tooloption : v6eval tool option
None
Tester Target
| |
|-------------------------->|
| Echo Request |
| |
| |
|<--------------------------|
| Neighbor Solicitation |
| |
| |
|-------------------------->|
| Neighbor Advertisement |
| |
| |
|<--------------------------|
| Echo Reply |
| |
| |
v v
1. Send Echo Request
2. Wait Echo Reply or NS
3. If NS received then send NA, and wait Echo Reply again
4. Receive Echo Reply
Echo Request Data is:
IPv6 Header
Version = 6
Traffic Class = 0
FlowLabel = 0
PayloadLength = 16
NextHeader = 58 (ICMP)
HopLimit = 0
SourceAddress = Tester Link Local Address
DestinationAddress = Target Link Local Address
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: Echo Reply Received
IPv6 Header
Version = 6
Traffic Class = 0
FlowLabel = 0
PayloadLength = 16
NextHeader = 58 (ICMP)
HopLimit = 64
SourceAddress = Target Link Local Address
Destination Address = Tester Link Local Address
ICMP Echo Reply
Type = 129 (Echo Reply)
Code = 0
Checksum = (auto)
Identifier = 0xffff (same as Echo Request)
SequenceNumber = 1 (same as Echo Request)
PayloadData = {1,2,3,4,5,6,7,8} (same as Echo Request)
perldoc V6evalTool