from scapy.all import *
import requests
import re

wifi = 'wlp3s0'  # 把网卡名字加上，网卡的名字在ubuntu命令行输入ifconfig可以找到
def MacToProduct(MAC):
    header={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0'
    }
    url='https://mac.51240.com/{0}__mac/'.format(MAC)
    response=requests.get(url,headers=header)
    pattern=re.compile(' style="font-size:16px;">(.*?)</td>',re.S)
    results=re.findall(pattern,response.text)
    print(results)
    
while True:
    p = Ether(dst='ff:ff:ff:ff:ff:ff') / ARP(pdst='192.168.1.1/24')  # 如果有代码红线，应该是scrapy包或者ARP这个包没安装或者没导入
    # ans表示收到的包的回复
    ans, unans = srp(p, iface=wifi, timeout=4)
    print("一共扫描到{0}台主机：" .format(len(ans)))
    #for s in ans:
        #print(s)
    #ans.show()
    # 将需要的IP地址和Mac地址存放在result列表中
    result = []
    for s, r in ans:
        MAC=r[ARP].hwsrc
        print(r[ARP].psrc)
        #print(MAC)
        MacToProduct(MAC)

    time.sleep(5)

output:

***..***...*****............................................................................................................................................................................................................
Received 220 packets, got 11 answers, remaining 245 packets
一共扫描到11台主机：
192.168.1.3
['f4:2a:7d:7d:xx', 'TP-LINK TECHNOLOGIES CO.,LTD.（普联）']
192.168.1.1
['f8:8c:21:bc:xx:xx', 'TP-LINK TECHNOLOGIES CO.,LTD.（普联）']
192.168.1.2
['f4:2a:7d:a4:xxxx', 'TP-LINK TECHNOLOGIES CO.,LTD.（普联）']
192.168.1.10
['64:bc:58:8d:xx:xxx', 'Intel Corporate（英特尔）']
192.168.1.12
['c0:8a:cd:40:xx:xxxx', 'Guangzhou Shiyuan Electronic Technology Company Limited']
192.168.1.11
['44:59:e3:62:xxx:xxxx', 'HUAWEI TECHNOLOGIES CO.,LTD（华为）']
192.168.1.22
['18:cf:xxxx:ab', 'Liteon Technology Corporation']
192.168.1.18
['e0:b5:xxxx:c7:5e', 'Apple, Inc.（苹果公司）']
192.168.1.24
['3c:a0:xx:xx:a7', 'Liteon Technology Corporation']
192.168.1.32
['84:5c:f3:xxx:ef', 'Intel Corporate（英特尔）']
192.168.1.26
['20:47:da:17:xxxx', 'Xiaomi Communications Co Ltd（小米）']
Begin emission:
Finished sending 256 packets.
***.*****..**.*............
Received 27 packets, got 11 answers, remaining 245 packets