wakkadoo tech guides

Tuesday, January 21, 2014

Basic tcpdump Commands

Basic TCP tcpdump Commands
This page contains some basic tcpdump commands and how to use them.

How to perform tcpdump and create a pcap file. 
  •  tcpdump -nei cxgb1 -s0 -w /ifs/data/Isilon_Support/case197769_node.pcap host <IP_of_client> 
  • tcpdump -nei eth3 -s0 -w /myNFS/testNFS/i-caset3.pcap host 10.10.10.17 
How to read a tcpdump .pcap file 
  • # tcpdump -qns 0 -A -r /myNFS/mytcp.pcap  


Or download TCPICK instead and use 
  • tcpick -C -yP -r  tcpdump.pcap file 
  • tcpick -C -yP -r tcp_dump.pcap 

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