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Does DHCP provide MAC address?

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Does DHCP provide MAC address?

DHCP allocates an IP address to a MAC address. In other words, on all networks you PC has the same MAC address, but can be given different IP address by the DHCP servers.

What layer is the MAC address of the OSI?

data link layer
The OSI framework includes seven total layers. The data link layer (Layer 2) of the OSI moves data across a linked physical network. A layer 2 device on a computing network will transmit data to a destination according to Media Access Control (MAC) addresses, also known as Ethernet addresses.

What layer does DHCP operate on?

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application layer
DHCP runs at the application layer of the Transmission Control Protocol/IP (TCP/IP) stack to dynamically assign IP addresses to DHCP clients and to allocate TCP/IP configuration information to DHCP clients. This includes subnet mask information, default gateway IP addresses and domain name system (DNS) addresses.

What is DHCP packet?

A DHCP Discover packet is similar to the analogy above. When a device needs to obtain an IP address, it sends the DHCP Discover packet to the broadcast IP address 255.255.255.255. Packets sent to this IP address are received by all hosts on the network, and is used in this case to try and find the DHCP server.

What is my DHCP client ID Mac?

The Media Access Control (MAC) address is the DHCP client ID that is sent by the network adapter to the DHCP server. The MAC address is the physical address of your computer and is a unique serial number that does not change.

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How do MAC addresses work?

A MAC address consists of 12 hexadecimal digits, usually grouped into six pairs separated by hyphens. MAC addresses are available from 00-00-00-00-00-00 through FF-FF-FF-FF-FF-FF. The first half of the number is typically used as a manufacturer ID, while the second half is a device identifier.

Is DHCP a Layer 7?

DHCP belongs to application layer i.e. layer 7 of OSI model. The Dynamic Host Configuration Protocol is a standardized networking protocol used on Internet Protocol . It is a popular method of assigning IP address to a network. DHCP belongs to application layer i.e. layer 7 of OSI model.

What is a DHCP destination MAC address?

Destination MAC Address: The DHCP server broadcasts a DHCP Offer message over the Ethernet network. Source MAC Address: The source MAC address on the Ethernet is always the address of a packet sender. Thus, this field is the MAC address of the client (m2).

Why is dhdhcp offer a layer 3 broadcast?

DHCP OFFER is a layer3 broadcast because the server don’t know client Ip, but server knows the client mac address.

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What is DHCP release message?

DHCP Release If the client does not need its allocated IP address any longer, it unicasts a DHCP Release message (Destination MAC=DHCP Server MAC (m2), Destination IP=DHCP Server IP (1.1.1.254)) to the DHCP server. The server then releases the client IP address (1.1.1.10) listed in the Client IP field of the received message.

What happens when DHCP server receives client discover message?

As soon as DHCP Server receives Client Discover message, the DHCP server reply to DHCP client as an offer message. Now, as you can see, still the Destination IP address in the DHCP Offer Message header has a broadcast IP address. This is because the client didn’t get an IP address from DHCP Server.