综合体第三题（DHCP报文分析）

news2024/11/15 15:36:38

DHCP（一般情况下）

某公司网络DHCP服务器地址为192.168.0.2，可分配IP地址为192.168.0.6-192.168.0.254，缺省网关的地址为192.168.0.1，DNS服务器地址为192.168.0.2。网络中某客户机从服务器获取IP地址后，在客户机上执行ping命令的过程中，连续捕获的4条报文及对第4条报文的部分解析如下图所示。请补全图中空白处的信息。

编号	源IP地址	目的IP地址	报文摘要
1	192.168.0.10	192.168.0.1	Ping:Request
2	[1]	[2]	Ping:Reply
3	192.168.0.10	[3]	DHCP:Request, Type: Request
4	[4]	192.168.0.10	DHCP:Reply, Type:Ack
DHCP:----- DHCP Header ----- DHCP: Boot record type = 2 (Reply) DHCP: Hardware address type = 1 (10M Ethernet) DHCP: Hardware address length = 6 bytes DHCP: Client self-assigned address =[192.168.0.10] DHCP: Client address = [192.168.0.10] DHCP: Next Server to use in bootstrap = [0.0.0.0] DHCP: Relay Agent = [0.0.0.0] DHCP: Client hardware address = 001122334455 DHCP: VendorInformation tag = 63825363 DHCP: MessageType = 5 DHCP: Address renewel interval = 345600 (seconds) DHCP: Address rebinding interval = 604800 (seconds) DHCP: Request IP Address lease time = 691200 (seconds) DHCP: Subnet mask = 255.255.255.0 DHCP: Gateway address = [ [5]] DHCP: Domain Name Server address = [192.168.0.2]