Definitions

1. The hardware address is also known as the Medium Access Control (MAC) address, in reference to the standards which define Ethernet.
2. The hardware address is also known as the Medium Access Control (MAC) address, in reference to the IEEE 802.x series of standards which define Ethernet.
3. The hardware address is commonly called the Ethernet address or the Media Access Control (MAC) address.
4. The hardware address is also called the MAC (media access control) address.
5. The hardware address is associated with a particular network device.

Corresponding Hardware Address

1. ARP provides a dynamic mapping from an IP address to the corresponding hardware address.
2. This reply contains the IP address and the corresponding hardware address.

Arp Reply

1. The only difference is that the hardware address returned in the ARP reply is the address of the router port connected to the source network.

Rarp

1. The Reverse Address Resolution Protocol (RARP) allows a SNIU which only knows its hardware address to obtain an IP address from the network.

Protocol Address

1. It is called Inverse ARP [11] and describes a method for resolving a protocol address when the hardware address is already known.

Unique Hardware Address

1. Every node has a unique hardware address – see MAC address.

Set

1. You may also set the hardware address for other types of hardware, using the -t option.

Port

1. Each port has a unique hardware address that consists unique ULA (ULAx, ULAy and UlAa, respectively).

Order

1. MAC address a hardware address that every port or device needs in order to connect to a LAN segment.

Case

1. In the case where the sender wishes to determine his own protocol address, this, like ar$sha, will be the hardware address of the sender.
2. In the case of Ethernet, the hardware address is a 48-bit value.

Hosts

1. The Address Resolution Protocol (ARP), which determines the hardware address of the hosts.

Clients

1. BOOTP clients do not normally provide a dhcp-client-identifier, so the hardware address must be used for all clients that may boot using the BOOTP protocol.

Delivery

1. The client MUST include its hardware address in the 'chaddr' field for use in delivery of DHCP reply messages.

Router

1. The router, recognizing that the target address is on another subnet, will respond with its own hardware address.

Information

1. This information is passed up to the inquiring protocol stack, which uses the hardware address in communications with that node.

Gateway

1. The gateway starts with Step 2 above and the process is repeated until a router on Host X's local network is able to resolve the hardware address.
2. Validate that you do not have the 150.2 IP associated with the hardware address of your gateway.

Map

1. This is used by hosts to map a given hardware address to an IP address.

Mapping

1. The mapping in device A's cache would become invalid, since the hardware address in the entry is no longer on the network.
2. ARP assumes that every host knows the mapping between its own hardware address and protocol address(es).

Field

1. Select the type of network (such as Ethernet) that the host in on from the menu in the Hardware address field.

Octets

1. The permitted PTYPE values share a numbering space with those for Ethertype.[ 3][ 4][ 5] Hardware length (HLEN) Length (in octets) of a hardware address.

Receiver

1. Target hardware address (THA) Hardware address of the intended receiver.

Arp Request Packet

1. If no mapping is found, the source builds an ARP request packet, looking for the hardware address to match the IP address.

Local Network

1. This is OSI layer 2 hardware address defined by IEEE standard and is used to deliver packets in the local network.
2. Each machine on a local network has its own hardware address which differs from other machines'.

Routing

1. See also AppleTalk routing, hardware address, IP address, IP routing, IPX bridging, IPX routing.

Broadcast

1. If not, AARP initiates a broadcast or multicast message inquiring about the hardware address for the protocol address in question.

Data Link

1. Hardware address A data link layer address associated with a particular network device.
2. One of the primary network specifications handled at the Data Link Layer is the hardware address (also called the MAC address) of network adapter cards.

Requesting

1. If it is, it sends to the requesting host an ARP response indicating its own hardware address.

Request

1. The hardware address of the device should be registered with the campus DHCP service prior to contacting Hostmaster to request a fixed assignment.

Bytes

1. Type of hardware address (2 bytes).
2. Length in bytes of the hardware address field.

Interface

1. If the address does not match the hardware address of the interface (or the broadcast address), the frame is discarded.
2. The result of this is that a new interface is installed with a newly acquired hardware address.

Ifconfig

1. You can use the "ifconfig" or "ifconfig -a" command to find your hardware address.

Ipv4 Address

1. Instead of mapping a hardware address to a known IPv4 address, Reverse ARP (RARP) maps an IPv4 address to a known hardware address.

Nic

1. Hardware Address - The physical address for the NIC, which is used by low-level hardware layers of the network, including DSL bridges.

Network Interface

1. The fundamental concept behind ARP is that the network interface has a hardware address (a 48-bit value for an Ethernet or token ring interface).
2. If found, pppd creates a permanent, published ARP entry with the IP address of the remote host and the hardware address of the network interface found.

Specified

1. However, this field length can be any value, as specified in the hardware address length field of the datagram.
2. The server determines the configuration based on the client's hardware address as specified in the CHADDR (Client Hardware Address) field.

Packet

1. For the ARP request packet, the target hardware address is the only undefined field in the packet.

Replies

1. The destination host's ARP layer receives this broadcast, recognizes that the sender is asking for its hardware address, and replies with an ARP reply.

Network Adapter

1. Each network adapter has a unique hardware address (commonly referred to as a MAC address), which it uses for identification on the network.

Nodes

1. Nodes on the same segment of the same LAN use ARP to determine the hardware address of other nodes.
2. Nodes use these to determine the hardware address of a given IP address if directly available.
3. Nodes X and Y each know their own hardware address.

Node

1. Short for Media Access Control address, a hardware address that uniquely identifies each node of a network.
2. Media Access Control address, a hardware address that uniquely identifies each node of a network.
3. If the broadcast reaches a node with the specified protocol address, that node replies with its hardware address.

Reply

1. If the receiving host finds that the IP address of the source host matches its own--it sends a reply to the source host with its hardware address.
2. Then, the machine that matched the specified IP address will reply with the requested hardware address.
3. The reply will contain the physical hardware address of the host and source route information (if the packet has crossed bridges on its path).

Arp Request

1. It should also be noted that the target hardware address, in both ARP request and reply, will also be invalid.
2. First, node jim broadcasts an ARP request for node fred 's hardware address.

Computer

1. In order to map an IP address into a hardware address the computer uses the ARP protocol.
2. If Computer B is on a remote network, ARP will determine the hardware address of the default gateway for routing to Computer B.

Network Card

1. If you hear someone talking about the MAC address of a network card, they are referring to the hardware address of the card.
2. Each network card, called a network interface card (NIC) has a built in hardware address programmed by its manufacturer.

Cache

1. The target machine answers the broadcast with its hardware address and the calling machine stores the information in its cache.
2. Specifies a hardware address that is or will be mapped to an Internet address in the cache.
3. The process starts where one host sends a local broadcast to obtain a hardware address and puts the resulting information into a cache for future reference.

Arp Cache

1. The router must have the next routers destination IP address and hardware address loaded in their ARP cache for a successful hop.
2. If it the address is not in the ARP cache, ARP broadcasts a message to the known IP address for its hardware address.
3. As a result of this, the triplet <protocol type, protocol address, hardware address for the desired host will be added to its lookup table (ARP cache).

Mac

1. This is where a MAC or hardware address is translated into Internet Protocol (IP) addresses (or other routable protocol addresses, such as IPX or AppleTalk).

Categories

1. Computers > Internet > Internet Protocols > Mac Address
2. Address Resolution Protocol
3. Arp
4. Media Access Control
5. Ethernet Address

Related Keywords

* Aarp * Address * Addresses * Address Resolution Protocol * Amt * Arp * Bootp * Client * Destination * Destination Address * Device * Ethernet * Ethernet Address * Ethernet Card * Hardware * Mac Address * Mac Addresses * Media Access Control * Network * Network Address * Sender * Sender Hardware Address

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