sinff()捕获数据包

from scapy.all import *
#创建数据流
f = PcapWriter("2.cap",append=True)
print(conf.ifaces)  #查看本机所有网卡
print(conf.route)  #查看本机所有路由
def callback(pkt):
    print(pkt.summary())
    f.write(pkt)
# sniff(filter="icmp and host 127.0.0.1",iface="Software Loopback Interface 1",prn=callback,count=int(16))
sniff(filter="dst host 127.0.0.1",iface="Software Loopback Interface 1",prn=callback,count=int(1))

print("=======")