| Title | Check a checksum of Echo Reply |
| CommandLine | ./Echo_Checksum.seq -pkt ./Echo_Checksum.def -log 4.html -ti Check a checksum of Echo Reply |
| TestVersion | V6LC_P1_1_3 |
| ToolVersion | REL_2_2 |
| Start | 2004/07/14 21:16:29 |
| Tn | /usr/local/v6eval//etc//tn.def |
| Nu | /usr/local/v6eval//etc//nut.def |
| Pkt | ./Echo_Checksum.def |
| System | unitedlinux |
| TargetName | USAGI snapshot 20040705a (2.6 kernel) |
| HostName | apltc01.yamato.ibm.com |
| Type | host |
| 21:16:30 | Start |
|
Initialization |
|
| 21:16:30 | Start Capturing Packets (Link0) |
|
This is very tricky, but send echo-reply (src = NUT/dst = TN) to get valid checksum value. |
|
| 21:16:30 |
vSend(Link0,echo_reply_link_local) send echo_reply_link_local |
| 21:16:30 | Clear Captured Packets (Link0) |
|
Test |
|
| 21:16:30 |
vSend(Link0,echo_request) Send Echo Request (Link-local address) |
| 21:16:30 | vRecv(Link0,echo_reply ns_local ns_local_sll ns_global ns_global_sll) timeout:5 cntLimit:0 seektime:0 Receive Echo Reply (Link-local address) |
Checksum value included in NUT's sending packet is valid OK |
|
| 21:16:30 | End |
Frame_Ether (length:68) | Hdr_Ether (length:14) | | DestinationAddress = 0:0:0:0:1:0 | | SourceAddress = 0:7:e9:3e:bb:7 | | Type = 34525 | Packet_IPv6 (length:54) | | Hdr_IPv6 (length:40) | | | Version = 6 | | | TrafficClass = 0 | | | FlowLabel = 0 | | | PayloadLength = 14 | | | NextHeader = 58 | | | HopLimit = 64 | | | SourceAddress = fe80::207:e9ff:fe3e:bb07 | | | DestinationAddress = fe80::200:ff:fe00:100 | | ICMPv6_EchoReply (length:14) | | | Type = 129 | | | Code = 0 | | | Checksum = 55911 calc(55911) | | | Identifier = 0 | | | SequenceNumber = 0 | | | Payload (length:6) | | | | data = ffffffff ffff
Frame_Ether (length:68) | Hdr_Ether (length:14) | | DestinationAddress = 0:7:e9:3e:bb:7 | | SourceAddress = 0:0:0:0:1:0 | | Type = 34525 | Packet_IPv6 (length:54) | | Hdr_IPv6 (length:40) | | | Version = 6 | | | TrafficClass = 0 | | | FlowLabel = 0 | | | PayloadLength = 14 | | | NextHeader = 58 | | | HopLimit = 64 | | | SourceAddress = fe80::200:ff:fe00:100 | | | DestinationAddress = fe80::207:e9ff:fe3e:bb07 | | ICMPv6_EchoRequest (length:14) | | | Type = 128 | | | Code = 0 | | | Checksum = 56167 calc(56167) | | | Identifier = 0 | | | SequenceNumber = 0 | | | Payload (length:6) | | | | data = ffffffff ffff
Frame_Ether (length:68) | Hdr_Ether (length:14) | | DestinationAddress = 0:0:0:0:1:0 | | SourceAddress = 0:7:e9:3e:bb:7 | | Type = 34525 | Packet_IPv6 (length:54) | | Hdr_IPv6 (length:40) | | | Version = 6 | | | TrafficClass = 0 | | | FlowLabel = 0 | | | PayloadLength = 14 | | | NextHeader = 58 | | | HopLimit = 64 | | | SourceAddress = fe80::207:e9ff:fe3e:bb07 | | | DestinationAddress = fe80::200:ff:fe00:100 | | ICMPv6_EchoReply (length:14) | | | Type = 129 | | | Code = 0 | | | Checksum = 55911 calc(55911) | | | Identifier = 0 | | | SequenceNumber = 0 | | | Payload (length:6) | | | | data = ffffffff ffff ===echo_reply=================================