The client returns a formal request for the offered IP address to the DHCP server in a DHCPREQUEST broadcast message.
The offer from the DHCP server is not a guarantee that the IP address will be allocated to the client however, the server usually reserves the address until the client has had a chance to formally request the address. DHCP Request for an IP Address from a DHCP ServerĪ DHCP client may receive offers from multiple DHCP servers and can accept any one of the offers however, the client usually accepts the first offer it receives.
#Find dhcp client id mac
A DHCP server offers configuration parameters (such as an IP address, a MAC address, a domain name, and a lease for the IP address) to the client in a DHCPOFFER unicast message.įigure 1. The client, Host A, sends a DHCPDISCOVER broadcast message to locate a DHCP server. The figure below shows the basic steps that occur when a DHCP client requests an IP address from a DHCP server. A DHCP client is an Internet host using DHCP to obtain configuration parameters such as an IP address. The Dynamic Host Configuration Protocol (DHCP) provides a framework for passing configuration information to hosts on a TCP/IP network. The DHCP client can be configured on Ethernet interfaces.
#Find dhcp client id software
Navigator to find information about platform support and Cisco software image Which each feature is supported, see the feature information table. The features documented in this module, and to see a list of the releases in Release notes for your platform and software release.
May not support all the features documented in this module. Configuration Examples for the DHCP Client.The Cisco Dynamic Host Configuration Protocol (DHCP) Client feature allows a Cisco device to act as a host requesting configuration parameters, such as an IP address, from a DHCP server.
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