发送discoverfrom scapyall import srpIPUDPEtherBOOTPDHCPdhcp_discover = Etherdst=ffffffffffff IPsrc=0000 dst= 255255255255 UDPsport=68 dport=67 BOOTP DHCPoptions= message-typediscoverendsrpdhcp_discov

改为使用sendp函数发送，以便实现循环发送。

完整代码如下：

from scapy.all import srp,IP,UDP,Ether,BOOTP,DHCP, sendp
import time

dhcp_discover = Ether(dst="ff:ff:ff:ff:ff:ff") / IP(src="0.0.0.0", dst= "255.255.255.255")  / UDP(sport=68, dport=67)/ BOOTP()/ DHCP(options= [("message-type","discover"),"end"])

while True:
    sendp(dhcp_discover)
    print("Sent DHCP Discover")
    time.sleep(1)

这段代码会不断发送DHCP Discover请求，并每隔1秒打印一次“Sent DHCP Discover”。可以通过Ctrl+C来中断循环发送。