IP conflicts in DHCP occur when two devices on the same network are assigned the same IP address, leading to communication issues. This can happen if a device with a static IP address connects to the network or if the DHCP server's lease time expires while a device is still in use. Additionally, improper configuration of the DHCP server, such as overlapping scopes or insufficient address pools, can also cause conflicts. Regular monitoring and proper network management can help prevent these issues.
router (config)# ip dhcp servicerouter (dhcp-config)# ip dhcp pool router (dhcp-config)# network
A DHCP (Dynamic Host Configuration Protocol) range refers to the set of IP addresses that a DHCP server can assign to devices on a network. This range is defined by a starting and ending IP address, allowing the server to dynamically allocate addresses to devices as they join the network. The DHCP server manages this range to ensure that IP addresses are assigned efficiently and without conflict, facilitating seamless network connectivity for devices.
DHCP uses the clients MAC address to determine the IP address a client receives.
DHCP server must be assigned a static IP address...On a Windows computer you can find out the IP address of the DHCP server that assigned your current IP address by opening a command prompt and typing "ipconfig /all".
DHCP - Automatically provides client computers and other TCP/IP-based network devices with IP addresses
DHCP stands for Dynamic host configuration protocol. DHCP is a piece of the TCP/IP protocol suite that handles the automatic assignment of IP addresses to clients.
In the LAN, its recommended to use DHCP because of the following two big reasons.Reliable IP address configuration: Using DHCP minimizes the human error caused while manual IP address configuration.Reduced Netwok Administration:Centralized and Automatic TCP/IP configurations.The ability to assign a full range of additional TCP/IP configuration values by means of DHCP options.
In case dhcp is failed then your ip address should start at 169.254.x.x (APPA IP) . Solution is that you have to put manually ip address to that system.
A DHCP server will privide a client with a valid IP address for the network for which the DHCP server is providing a service.Where there is no DHCP server the IP address for a client must be set manually. When doing this care must be taken to ensure that two IP addresses are not set the same on the network.
According to Microsoft:How to use automatic TCP/IP addressing without a DHCP server"A Windows-based computer that is configured to use DHCP can automatically assign itself an Internet Protocol (IP) address if a DHCP server is not available. For example, this could occur on a network without a DHCP server, or on a network if a DHCP server is temporarily down for maintenance."For more information, see Related Links, below.
By using a router with DHCP turned on in the router
yes, one can configure two dhcp server on a same network. But for doing this, one has to define different scopes in both dhcp server in order to avoid ip address conflict. Eg. one can configure a scope for a lan with network address of 10.0.0.0 as- 10.0.0.10- 10.0.0.100 in one dhcp server. while other scope would be 10.0.0.101-10.0.0.200 . In this way we can have to dhcp servers on a same network. Which ever dhcp server receives the request for the ip address will provide the ip address. IN case for servers, one can use mac bindingin both servers so that they obtain same ip address