|  | 11.3 | Advanced ARP Concepts
| 11.3.2 |
Problems with sending data to nodes on different subnets
One of the major problems in networking is how to communicate with devices that are not on the same physical network segment. There are two parts to the problem. The first is obtaining the MAC address of the destination host, and the second is transferring the data packets from one network segment to another, to get to the destination host.