DHCP Accept is not a standard term in networking, but it may refer to the process where a DHCP client accepts an IP address and configuration parameters assigned by a DHCP server. During DHCP communication, after the server offers an IP address, the client sends a DHCP Request to accept that offer, and the server responds with a DHCP Ack to confirm the lease. This process enables devices to automatically obtain network settings without manual configuration.
The four stages of the Dynamic Host Configuration Protocol (DHCP) are: Discover: The client broadcasts a DHCP Discover message to locate available DHCP servers on the network. Offer: DHCP servers respond with a DHCP Offer message, which includes an IP address and other configuration parameters. Request: The client selects one of the offers and broadcasts a DHCP Request message to accept it and request the offered IP address. Acknowledge: The DHCP server sends a DHCP Acknowledgment message to confirm the lease of the IP address and provide the necessary configuration details to the client.
The port 67 and port 68 are used by DHCP and the DHCP clients.
The use of a DHCP relay agent is an agent that relays DHCP between DHCP clients and DHCP servers on different IP networks. The DHCP relay agent is compliant with RFC 1542.
dhcp has to be authorized
router (config)# ip dhcp servicerouter (dhcp-config)# ip dhcp pool router (dhcp-config)# network
(DHCP) Dynamic host Configuration Protocol. The Default Port Number is: for DHCP client : 546 for DHCP server : 547
yes DHCP require the authorization of the dhcp server before IP addresses can be allocated because until we authorize DHCP server the network does not know who is the dhcp server for the subnet. The DHCP server broadcasts the information to all.
Those are the four phases of acquiring an IP address via DHCP. More information would be needed to indicate which of the 4 phases are being used at this point.
dhcp-client
DHCP server configuration in /etc/dhcp/dhcpd.conf(FEDORA)or /etc/dhcpd.conf (RHEL).
After receiving a DHCP Discover message, a DHCP server responds by sending a DHCP Offer packet. This packet contains an available IP address, subnet mask, lease duration, and other configuration parameters. The DHCP Offer is then broadcast to the client, allowing it to choose among multiple offers if multiple DHCP servers are present.
Router is usually configured as a DHCP client for WAN (Internet) network and as a DHCP server for local network.