October 29, 2019 · Basic Pen-Testing

2.3 : Essential Tools - tcpdump (Part IV)

Tcpdump

Common usages

show help

tcpdump --help

monitor eth0 traffic & print to stdout

tcpdump -i eth0 -v

monitor eth0 traffic & print to stdout & filter traffic from host 192.168.0.1

tcpdump -i eth0 -v host 192.168.0.1

monitor eth0 traffic & print to stdout & filter traffic to host 192.168.0.2

tcpdump -i eth0 -v dst 192.168.0.2

monitor eth0 traffic & filter traffic to host 192.168.0.2 & save it as output.pcap

tcpdump -i eth0 dst 192.168.0.2 -w ./output.pcap 

Tutorials