Some systems, especially servers, might have multiple network interfaces.
The last column, Iface, means "interface" and represents the port on the system through which all of the connections are being made. One of the two devices that don't show a C in this example is a cell phone. In this example, all but one connection are marked C, which means "complete" and verifies the connection was successful. The second (HWtype) indicates that the connections are Ethernet connections, and the third (HWaddress) is the MAC address of each device. The first column shows IP addresses or host names. The first line contains the column headings. Here's an example of the arp command and what it shows you: $ arpĪddress HWtype HWaddress Flags Mask Ifaceįruitfly ether 7c:67:a2:cf:9f:ef CM enp0s25Ĭomtrend.Home ether f8:8e:85:35:7f:b9 C enp0s25ĭragonfly ether 20:ea:16:01:55:eb C enp0s25 (An arp-a command also will show the arp table in the command prompt on a Windows box, by the way.) Add -a to condense the output if you don't want to see the data organized into columns with headings. So, the Internet Engineering Task Force(IETF) came up with a newer and faster version i.e IPv6.To display the ARP table on a Linux system, just type "arp". There was rapid exhaustion of IPv4 as the number of devices connected to the internet was huge.
192.168.1 indicates the network ID and the fourth number indicates the host ID. When a device is connected to the internet, it is assigned a unique IP address such as 192.168.1.1 where the first three numbers i.e. IPv4 is the fourth version of IP that was launched back in 1983. There are two versions of Internet Protocol: IPv4 and IPv6. Information is shared in the form of IP packets that contain both the sender’s and receiver’s IP addresses. It has been characterized as “A name indicates what we seek, An address indicates where it is. It is used for communication between devices as well as between networks. It is a unique identification number used to identify a network or device on the internet. IP address stands for Internet Protocol address.
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