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#5766

pavankvnaidu
Participant

Hi SerpentFly,
I found that the repetition starts after the final ack has been sent. I don’t know why its happening. for your reference, I am posting the log file here.
In the log, System-1 is the system where I am modifying the packet. and as I mentioned earlier, I am modifying only the packets with payload.

System-1 –>System-2
ip_len=40
Seq:19027, ack:28986
Type = FIN ACK
Identification:14987

System-2 –>System-1
ip_len=40
Seq:28986, ack:19027
Type = ACK
Identification:61538

System-2 –>System-1
ip_len=40
Seq:28986, ack:19027
Type = FIN ACK
Identification:61539

System-1 –>System-2
ip_len=40
Seq:19027, ack:28986
Type = ACK
Identification:14988

Repetition Starts here….

System-1 –>System-2
ip_len=40
Seq:19027, ack:28986
Type = ACK
Identification:14989

System-2 –>System-1
ip_len=40
Seq:28986, ack:19027
Type = ACK
Identification:61540

System-1 –>System-2
ip_len=40
Seq:19027, ack:28986
Type = ACK
Identification:14990

System-2 –>System-1
ip_len=40
Seq:28986, ack:19027
Type = ACK
Identification:61541
….
….