display TCP in details

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Hi,

Here is a question, is there have any way to display TCP packet in details such as TCP header, its hex string, TCP error checking, threeway handshake for TCP connections (SYN, SYN/ACK, ACK)?

Regards

Jaxx

[tst]

The LabVIEW TCP functions don't give you this information because they only allow you to work at the application level.

You could try calling some external code which will allow you to do this. For example, if you search the forums for "sniffer", "WinPCAP" and similar terms you should find some code examples.

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Hi tst,

I'm a newbie about this. About the LabVIEW only support TCP in application layer, can you clarify for me, tell me some examples that what LabVIEW can do in TCP's application layer.

Thanks!

Regards

Jaxx

[mikeporter]

What tst is referring to is the TCP/IP stack model also called the Internet reference model. This reference give you a good basic description of the internet's hierarchical logical structure.

<mini-rant>
It's also a reminder that all really useful [read: non-trivial] systems have a hierarchical structure - whether it's the internet or the LV programs that you build.
</mini-rant>

Mike...

[Ben]

The "Ethernet Packet Sniffer Utility Using WinPcap Functions " should get you part of what you are asking.

LabVIEW offers API's for level 3 and for as outlined in the Wiki reference Mike provided.

If you search the LabVIEW help for TCP/IP you will find examples for level three.

The Send E-mail example demonstrates utilizing level 4 through SMTP.

Ben