tcpdump -i any 监听所有网卡
sudo tcpdump src 192.168.1.100
sudo tcpdump src host 192.168.1.100 or host 192.168.1.200
sudo tcpdump src 192.168.1.100 and dst www.example.com and tcp port 80
sudo tcpdump -n #不转换ip
sudo tcpdump -i <interface> -e 显示MAC地址