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need a small script for testing purposes
From: "Wissmann, Dirk" <Dirk.Wissmann () Atos net>
Date: Mon, 30 Sep 2013 10:05:59 +0200

Hi all,

in order to reproduce a very specific error of an TCP/IP communication process, I need a tiny little nse-script, but 
unfortunately, I'm not used to LUA programming.

This script should reproduce a very unusual behaviour:

First, a device creates a connection to my listener, I can see the usual 3-way-handshake in wireshark:

device -> listener: SYN
listener -> device: SYN, ACK
device -> listener: ACK

Now the unexpected happens :

device -> listener : RST
device -> listener : PSH,ACK (with 128 bytes of data)
listener -> device: RST, ACK

Since this is a complete new situation, the listener process suddenly stops working, but without crashing. Now I need 
to "immunize" my listener process, so that I can set up the listener again properly. But since I don't know, where the 
problem is, and since I know of no other tool, I need a tiny little lua script (that I think has to use the packet 
library) that simulates the behaviour of this defective device: a proper connection, then the RST packet followed by a 
packet with data in it...

Is there maybe someone here, who could at least give me a "sample frame" for this?

Thanks already, guys!


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