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Re: Asterisk ignoring replayed libpcap sessions

If you originally thought that a simple TCP replay, with sequence and port numbers fixed up, would always work, consider this:

-Client connects
-Server says "Say 3"
-Client says "3"
-connection continues.

So you replay that.  This time:

-Server says "Say 5"
-replayed Client says "3"
-Server disconnects.

In many cases, a replayer that doesn't understand the application protocol will fail.

Now extend that to a TCP connection that does an encryption setup with a challenge-response.