FH_1stOnly - check Fragment Reassembly (1st fragment only)
Host and Router
FH_1stOnly.seq [-tooloption ...] -pkt Fragment.def
-tooloption : v6eval tool option
1. Ping to Target (create Neighbor Cache Entries, if not exist)
2. Override Neighbor Cache Entries
Tester Target
| |
|-------------------------->|
| Echo Request (1st) |
| |
| |
|<--------------------------|
| ICMP Error |
| |
| |
v v
1. Send Echo Request (1st fragment)
2. Wait ICMP Error (timeout = 60 sec)
3. Receive ICMP Error
PASS: ICMP Error 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 Error
Type = 3 (Time Exceeded)
Code = 1 (fragment reassembly time exceeded)
Checksum = (auto)
PayloadData = (Echo Request)
perldoc V6evalTool