Detailed explanation of DHCP protocol - where does IP come from?

What happens when Windows 10 Ethernet prompts that dhcp is not enabled? Recently, some users have encountered such a problem when using computers. In order to help everyone use the network better, the editor will share the solution to the problem that Windows 10 Ethernet prompts that dhcp is not enabled. How to fix dhcp not enabled on win10 Ethernet: 1. First press the shortcut key "win+r", and then click run. 2. Then enter services.msc and press Enter. 3. Then you can find the "DHCPClient" service and double-click it to open it. 4. Finally, change the activation type to automatic and the service status to started, then press OK to save the settings and restart the local connection.

The dhcp service does not respond because there is an error in the automatic IP address acquisition service. Reconfigure the service. Reasons for no response: 1. The "Automatically obtain IP address" function is not turned on, and you only need to set the IP to "DHCP"; 2. Caused by network fluctuations, the device is connected to the network, the router assigns an IP address, and the device obtains an IP address. This requires a process. If the network fluctuates during this process, the device will be unable to obtain an IP address. 3. Equipment problems. If the router's cache is full and crashes, IP addresses cannot be assigned to networked devices.

DHCP is an acronym for Dynamic Host Configuration Protocol, a network protocol that automatically assigns IP addresses to client systems in a computer network. It allocates clients from the DHCP pool or the IP address range specified in its configuration. While you can manually assign static IPs to client systems, a DHCP server simplifies the process and dynamically assigns IP addresses to client systems on the network. In this article, we will demonstrate how to install and configure a DHCP server on RHEL9/RockyLinux9. Prerequisite: Pre-installed RHEL9 or RockyLinux9 with sudo management permissions

The role of a DHCP relay is to forward received DHCP packets to another DHCP server on the network, even if the two servers are on different subnets. By using a DHCP relay, you can deploy a centralized DHCP server in the network center and use it to dynamically assign IP addresses to all network subnets/VLANs. Dnsmasq is a commonly used DNS and DHCP protocol server that can be configured as a DHCP relay server to help manage dynamic host configurations in the network. In this article, we will show you how to configure dnsmasq as a DHCP relay server. Content Topics: Network Topology Configuring Static IP Addresses on a DHCP Relay D on a Centralized DHCP Server

When many users use computers to connect to Ethernet, they will see the prompt "DHCP is not enabled" and don't know what to do. This is because the DHCP function is not enabled on the router. This article teaches you how to solve this problem. 1. Check the login information. To solve the problem of "DHCP is not enabled on the Ethernet", you need to log in to the router first. When logging in to a router, you usually need to obtain the router's gateway, username, and password information. This information is usually marked on the back of the router. The IP of the router is the so-called gateway address. The default gateway address of some routers is 192.168.1.1 or 192.168.0.1. The login account generally defaults to admin and the password is admin or 123456. 2. Log in to router management

Not enabling dhcp means that the computer has not been set to automatically obtain an IP address, causing Internet access errors. The solution is: 1. Press the key combination "win+r" to open the run window, enter "services.msc" and press Enter; 2. After bringing up the service window, find the "DHCP Client" service and double-click it to open it; 3. After opening the dhcp service, change its activation type to automatic and the service status to started, and then press OK to save the settings.

The impact of turning off dhcp on the router: 1. The client cannot automatically obtain an IP address; 2. The IP address needs to be configured manually; 3. It may cause network connection problems; 4. It affects the communication of network devices; 5. IP address conflicts; 6. Unable to proceed Dynamic address allocation; 7. Network isolation cannot be performed; 8. Traffic control cannot be performed; 9. Access control cannot be performed. It is recommended that before turning off the DHCP service, carefully consider whether it really needs to be turned off, or keep the DHCP service to ensure that the client can automatically obtain the correct IP address.

The port numbers for the DHCP service are 68 and 67. dhcp is a LAN network protocol. It is usually used in large-scale LAN environments. Its main function is to centrally manage and allocate IP addresses and improve address usage. The DHCP protocol uses UDP as the transmission protocol. The host sends a request message to port 68 of the DHCP server, and the DHCP server responds with a response message to port 67 of the host. These two ports are normal DHCP service ports, which can be understood as one sending and one take over.