#Antionline ip locator mac#
If not then ARP sends out an ARP broadcast to the Ethernet MAC broadcast address (FF:FF:FF:FF:FF:FF) This can happen in a number of ways, the first to happen is that ARP checks it’s cache to see if it has a match to the Destination IP Address. Once the packet has been created ARP (Address Resolution Protocol) is then used to identify the MAC (Media Access Control / Hardware address / Burned Address) address of the destination host. (0x indicates that the following is an hexadecimal number) The protocol field informs the receiving host where to pass the data to, in this example the protocol field would be set to 0x1h to indicate ICMP. IP (Internet Protocol) on PC-A creates a packet containing the Destination IP Address (192.168.2.25), the Source IP Address (192.168.1.10), the data, and a protocol field. The first thing to happen is that ICMP (Internet Control Management Protocol) creates data. You have PC-A in subnet 192.168.1.0/24, PC-B in subnet 192.168.2.0/24 and a router connected to both subnets. Everybody knows that the ping utility is used to check network connectivity between two hosts, but what happens when a user issues a ping? This article is designed to explain the basics of what happens on a network when a ping is issued.
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