importsocketimportstruct# DHCP服务器的基本设置SERVER_IP='192.168.1.21'# 指定的服务器IP地址SERVER_PORT=11167# 修改DHCP服务端口67,因为本机已经获取DHCP分配的地址,实验用使用固定的端口67无法正常运行CLIENT_PORT=11168# 修改DHCP客户端端口68IP_POOL_START=100# 可用IP地址池起始部分IP_POOL_END=200# 可用I...
("server_id", pkt[DHCP].options[1][1]), ("requested_addr", pkt[BOOTP].yiaddr), "end"]) Request = Ether_Request / IP_Request / UDP_REQUEST / BOOTP_Request / DHCP_Request sendp(Request, iface='以太网',count=1) print("正在分配ip%s" %(pkt[BOOTP].yiaddr)) if pkt[DHCP].options...
1importbinascii2importstruct3importsocket45classOffer():6def__init__(self, transaction_id, client_ip_offer, server_ip, client_mac_id, file_path, pass_sec, msg_type, tftp_ip=None, lease_time=172800):7SERVER_NAME =''8self._server_ip =server_ip9self._offer_ip =client_ip_offer10self...
= packet[IP].src if ip == server_ip: print(f"服务器 {server_ip} 的IP地址已变更为 {ip}") sniff(filter=f"udp and (port 67 or port 68)", prn=handle_packet, store=0) if __name__ == "__main__": server_ip = "192.168.1.1" # 需要监控的服务器IP地址 monitor_dhcp(server_ip...
1.其意图就是向路由器R上的DHCP Server提出请求,希望获取到该DHCP Server发送给自己的DHCP Offer消息中所提供的那个IP地址。 2.这个DHCP Request消息中携带有R上的DHCP Server的标识(称为Server Identifier),表示PC上的DHCP Client只愿意接受R上的DHCP Server所给出的Offer ...
no backup file found'body=MIMEText(content,_subtype='html',_charset='gb2312')msg.attach(body)#配置错误信息smtp=smtplib.SMTP(smtpserver)smtp.login(username,passwd)smtp.sendmail(sender,receiver,msg.as_string())#送件#except s.SMTPException,e:# print '发送失败'smtp.quit()#print ('send email...
(SERVER_IP, SERVER_PORT)) # 存储已分配的IP地址 allocated_ips = set() ''' 遍历可用IP地址池,检查每个IP是否已被分配。如果找到未分配的IP,则返回该IP;如果没有可用IP,则返回 None。 ''' def get_available_ip(): """获取可用的IP地址""" for ip in range(IP_POOL_START, IP_POOL_END + 1...
DHCP_Request =DHCP(options=[("message-type",'request'), ("server_id", pkt[DHCP].options[1][1]), ("requested_addr", pkt[BOOTP].yiaddr),"end"]) Request = Ether_Request / IP_Request / UDP_REQUEST / BOOTP_Request / DHCP_Requestsendp(Request, iface='以太网',count=1)print("正在分...