What is DHCP NAK message?
A DHCP NAK message is sent by a DHCP server to reject the DHCP Request message from a DHCP client. For example, if a DHCP server cannot find matching lease records after receiving a DHCP Request message, it sends a DHCP NAK message indicating that no IP address is available for the DHCP client.
What does RFC 2131 mean?
Dynamic Host Configuration Protocol (DHCP) is a standard protocol defined by RFC 1541 (which is superseded by RFC 2131) that allows a server to dynamically distribute IP addressing and configuration information to clients. IP Address.
What is DHCP Chaddr?
The DHCP server receives a broadcast request from a client. The DHCP server uses the client interface’s hardware address to unicast a reply when the client does not yet have an IP address assigned to it. The “chaddr” field in the DHCP message carries the client’s hardware address.
What are the 4 types of DHCP packets?
The complete DHCP exchange involves four types of packets: Discover, for your computer to locate the DHCP server; Offer, for the server to offer an IP address; Request, for your computer to ask for an offered address; and Ack, for the server to grant the address lease.
What is the DHCP process?
Dynamic Host Configuration Protocol (DHCP) is a network management protocol used to automate the process of configuring devices on IP networks, thus allowing them to use network services such as DNS, NTP, and any communication protocol based on UDP or TCP. DHCP is an enhancement of an older protocol called BOOTP.
What port is DHCP on?
DHCP messages that a client sends to a server are sent to well-known port 67 (UDP—Bootstrap Protocol and DHCP). DHCP Messages that a server sends to a client are sent to port 68.
What DHCP is used for?
Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway.
What does DHCP stand for?
Dynamic Host Configuration Protocol
A DHCP Server is a network server that automatically provides and assigns IP addresses, default gateways and other network parameters to client devices. It relies on the standard protocol known as Dynamic Host Configuration Protocol or DHCP to respond to broadcast queries by clients.