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Arp (address resolution protocol)
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Which protocol is used to find the hardware address of a local device?
ARP
What protocol is use to find the hardware address of local devices?
Arp (address resolution protocol)
What is indicated by a hardware address of ff ff ff ff ff ff?
A hardware address of ff ff ff ff ff ff is a broadcast MAC address in Ethernet networks. This address is used to send packets to all devices on a local network segment, allowing communication with every device connected to that network. When a frame is sent to this address, all network interfaces on the same broadcast domain will receive and process the packet.
What type of address is automatically assigned to an IPv6?
An IPv6 device is automatically assigned a link-local address, which is a type of address that is used for communication within a local network segment. This address is generated using the device's MAC address and the prefix "FE80::/10". Link-local addresses are essential for functions such as neighbor discovery and are not routable beyond the local link.
Why does wireshark shows the actual MAC address for the local host but not for the remote host?
Wireshark displays the actual MAC address of the local host because it is directly connected to the network and can access its own hardware address. In contrast, for remote hosts, Wireshark typically shows the MAC address of the last device that forwarded the packet, such as a router, instead of the actual MAC address of the remote host. This is due to the way Ethernet and IP networking function, where MAC addresses are only visible within the same local network segment.
Is a MAC address logical?
A MAC address is not considered logical; it is a physical address. It is a unique identifier assigned to network interfaces for communications on a local network segment and is hardcoded into the network hardware. Unlike logical addresses, such as IP addresses, which can change based on the network configuration, MAC addresses remain constant for a device's network interface.
How is ARP reply message different from that of ARP request message?
An ARP request is a broadcast Ethernet packet, that is, a packet sent onto the local physical network that all attached devices will receive. A device sends an ARP request to make the query "what is the MAC address (a.k.a. hardware address, link layer address, etc.) of this IP address (a.k.a Layer 3 address, logical network address, etc.)?" An ARP reply is an unicast Ethernet packet, sent from the device that currently owns the specified IP address, back to the device which sent the ARP request. That is, no other device will receive this packet. The ARP reply answers the requester's question, saying "IP address x.x.x.x is associated with MAC address xx:xx:xx:xx:xx:xx".
What do the following commands RARP and ARP do?
RARP (Reverse Address Resolution Protocol) is used to map a physical hardware address (MAC address) to an IP address, allowing a device to determine its IP address on a local network. In contrast, ARP (Address Resolution Protocol) performs the opposite function; it translates an IP address into a physical MAC address, enabling network devices to locate each other within a local area network. Both protocols facilitate communication in IP networks by ensuring devices can identify each other based on their respective addresses.
What is 192 168 0 4 mean?
It is an IP address (address of a computer, router or some device) in local area network.
If a device does not receive an IP address from a DHCP server the device may resort to what kind of IP address?
If a device does not receive an IP address from a DHCP server, it may resort to using a link-local IP address, often in the range of 169.254.0.1 to 169.254.255.254. This automatic configuration allows the device to communicate with other devices on the same local network segment without needing a DHCP server. This process is part of the Automatic Private IP Addressing (APIPA) protocol.
Where is thae MAC address assigned?
The MAC (Media Access Control) address is assigned to a network interface controller (NIC) by the manufacturer. It is a unique identifier embedded in the hardware of the device, typically in the firmware, and is used for communication within a local network. The MAC address operates at the data link layer of the OSI model and is essential for network protocols to correctly route data between devices on the same local area network (LAN).
Destination arp address?
The destination ARP (Address Resolution Protocol) address is the MAC (Media Access Control) address that corresponds to the IP address of the intended recipient of a data packet on a local network. When a device wants to communicate with another device, it uses ARP to map the IP address to its MAC address. If the MAC address is not already known, the device broadcasts an ARP request to the network, and the device with the matching IP address responds with its MAC address. This process enables devices to communicate effectively over Ethernet networks.
