Here is one way to read a pcap with pyshark: capture = pyshark.FileCapture('test.pcap', display_filter='tcp.analysis. import pysharkĬapture = pyshark.LiveCapture(interface='en1', bpf_filter='ip and tcp port 443', display_filter='') You can also filter these packets more specifically by applying the bpf_filter in LiveCapture to filter the TCP retransmission. This frame is a (suspected) fast retransmissionĮxpert Info (Note/Sequence): This frame is a (suspected) fast retransmission This frame is a (suspected) retransmission It should display this in the packets: # display_filter=''Įxpert Info (Note/Sequence): This frame is a (suspected) retransmission # display_filter=''Ĭapture = pyshark.LiveCapture(interface='en1', display_filter='_retransmission')įor packet in capture.sniff_continuously(packet_count=5): # display_filter: A display (wireshark) filter to apply on the cap before reading it. Edited by Admin Februat 3:03 AM TCP retransmission errors in wireshark Hello, Wireshark is shwoing tcp retransmissions and fast retransmissons errors on captured packets betwwn two servers. # these filters can be applied under LiveCapture TCP retransmission errors in wireshark Enterprise Certifications Community Djay asked a question. The code below detects TCP retransmissions in pyshark import pyshark

Tcp fast retransmission wireshark