DHCP服务器处理Discover报文,向AM(Address Management)模块申请IP地址。 [BTRACE][2020/10/12 11:46:49][0][AM][000c-2958-7ba7]:[AM (0)] Request Static Ip. [BTRACE][2020/10/12 11:46:49][0][AM][000c-2958-7ba7]:Receive REQUEST message.(ClientId:UserType: DHCP, MAC: 000c-2958-7b...
When the DHCP server receives the DHCPREQUEST message from the client, which is basically a unicast packet unlike the DHCPDISCOVER packet as the client now knows who the server is. This initiates the final phase of the configuration process. The acknowledgement phase involves sending a DHCPACK pa...
如果回显项“DHCP Discover”为0,说明:设备未收到客户端发来的请求报文,需要定位链路状态、客户端状态是否正常或DHCP Server服务器功能是否使能,即查看DHCP Server的GE1/0/0回显信息是否有dhcp server enable命令或者DHCP Server系统视图下回显是否有dhcp server request-packet all-interface enable命令。
The server inserts the 'xid' field from the DHCPDISCOVER message into the 'xid' field of the DHCPOFFER message and sends the DHCPOFFER message to the requesting client. 可见每个标准 DHCP 交互过程中都有同样一个 DHCP Transaction ID。 λ tshark -r 1_DHCP_SUCCESS.pcap -T fields -e dhcp.id...
DHCPDISCOVER: 5 DHCPREQUEST: 3 DHCPDECLINE: 0 DHCPRELEASE: 2 DHCPINFORM: 0 BOOTPREQUEST: 0 BOOTP Reply: 6 DHCPOFFER: 3 DHCPACK: 3 DHCPNAK: 0 BOOTPREPLY: 0 Bad Messages: 0 Table 1-6 Description on fields of the display dhcp server statistics command Field Description Global Pool Stat...
DHCPDISCOVER 当客户端第一次启动时,我们认为它处在初始化状态,它通过用户数据报协议 (UDP) 端口 67(BootP 服务器)在本地物理子网上传输 DHCPDISCOVER 消息。 由于客户端无法知道它所属的子网,因此DHCPDISCOVER是全子网广播(目的IP地址为255.255.255.255),源IP地址为0.0.0.0。源IP地址为0.0.0.0,因为客户端没有已...
1) Discover: In this phase, the DHCP client tries to find a DHCP server by broadcasting a DHCP-DISCOVER packet. 2) Offer: In this phase, the DHCP server offers an IP address. After the DHCP server receives the DHCP-DISCOVER packet from the DHCP client, it chooses an unassigned IP add...
Router#debug ip udpUDP packet debugging is on Router# 00:18:48: UDP: rcvd src=0.0.0.0(68), dst=255.255.255.255(67), length=584 !--- Router receiving DHCPDISCOVER from DHCP client. 00:18:48: UDP: sent src=192.168.1.1(67), dst=192.168.2.2(67), length=604 !--- Router forwarding...
The DHCP client discovers available DHCP servers by broadcasting a DHCP Discover packet to the network. The computer that sets the IP address to automatic mode is the DHCP client. It has no idea who is the DHCP server in the network and has no address. DHCP client sends a broadcast packet...
What source ip address is sent as part of DHCP discover packet? Go to solution kkanur Level 1 09-03-2014 01:37 AM - edited 03-04-2019 11:40 PM As part of DHCP discover packet what source ip address is sent.I have this problem too ...