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Network Security Focus-IDS
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Simulating Retransmissions

Subject: Simulating Retransmissions
Date: Thu, 13 Apr 2006 15:59:46 -0400
Hi everyone,

I need to have a server application retransmit some TCP packets to my
client to test my IDS.

What I was hoping to do is use Perl or something to basically
establish the 3 way handshake and then send a request to an HTTP
server or something and then never acknowledge the content returned. 
Basically it will look something like this.

Client -> SYN -> Server
Server -> SYN/ACK -> Client
Client -> ACK -> Server
Client -> GET /index.html -> Server
Server -> Contents of index.html -> Client
Server -> Contents of index.html -> Client
Server -> Contents of index.html -> Client
Server -> Contents of index.html -> Client
Repeated until the retransmission algorithm expires.

Can anyone think of any utilities that could help me with this or
point me towards the correct Perl modules.

Thanks

Mike Gibson

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