The MAC address of the Ethernet interface of PC1 is AA-AA-AA-AA-AA-AA.ĭestination MAC address - When the receiving device is on a different network from the sending device, this is the Ethernet MAC address of the default gateway or router. Source MAC address - The Ethernet MAC address of the sending device, PC1.This allows PC1 to reach the router directly. R1 has an interface and an IP address that is on the same network as PC1. In our example, the default gateway is R1. The Ethernet frame must be sent to another device known as the router or default gateway. When the sender and receiver of the IP packet are on different networks, the Ethernet data link frame cannot be sent directly to the destination host because the host is not directly reachable in the network of the sender. Destination IP address - The IP address of the receiving device, the server, Web Server: 172.16.1.99.Source IP address - The IP address of the sending device, the client computer PC1: 192.168.1.110.This will be indicated by the network portion of the IP address of the destination host. When the sender of the packet is on a different network from the receiver, the source and destination IP addresses will represent hosts on different networks. IP addresses indicate the network and device addresses of the source and destination. But what are the roles of the network layer address and the data link layer address when a device is communicating with a device on a remote network? In this example we have a client computer, PC1, communicating with a server, named Web Server, on a different IP network.

How to see default gateway on mac