In this lecture I will explain how to use the TCB replay command to replay pick up files in order to
simulate network traffic that will be captured so TV replay is a suite of free open source utilities
for editing and replaying previously captured network traffic and it is originally designed to replay
malicious traffic by turns to intrusion detection and prevention systems.
So now I will open the terminal later and go to this path slash opt slash symbols and then if I list
the files in this folder we see a lot of pick up files that can we use as symbols with the TCB really
a comment in order to simulate network traffic or clearly malicious network traffic.
And also we have other symbols in the sub folders like the Markov or MTA and other supporters.
Now I have to run this command with the route privilege so sudo then I will run on the pick up files
in in this folder using the STAR dot pickup.
And I have to use the comments so TCB replay and then I have to choose which switch interface I will
really the traffic into so I will use the AI option.
Then the Ethernet one interface.
And I also might have to specify the speed that I will run D or similar the network traffic to use using
the capital M option and I have specified the speed to be 100 megabytes and also I can use the B B option
in order to specify the number of packets that I will use.
So now I will execute the TCB really comment and I will hit enter and I will enter my password.
We see now that the packets
are being
replaced so now we see that the number of the attempt packets is about fifty five thousand packets and
the successful packets or the number of the successful packets is less than that slightly so and this
is the number of the failed packets.
So now this means that we have successfully executed the DCP replay comment and in the next lecture
I will show to you how to download more samples of these backup files in order to simulate other attacks
or a malicious traffic that you might need to analyse and also after that we will explain how to use
Isa and signal to analyse these network traffic.