The gateway address of the router interface is stored in the IPv4 configuration of the hosts . If the receiving host is not on the same network, the source uses the ARP process to determine a MAC address for the router interface serving as the gateway.
Step 1: Generate ARP requests by pinging 172.16.31.3 from 172.16.31.2. Step 2: Examine the ARP table. Step 1: Generate additional traffic to populate the switch MAC address table. Step 2: Examine the MAC address table on the switches. Step 1: Generate traffic to produce ARP traffic. Step 2: Examine the ARP table on Router1.
Why are two MAC addresses associated with one port? Because both devices connect to one port through the Access Point.
In general, when does an end device issue an ARP request? When it does not know the receiver’s MAC address.
Enter Simulation mode and enter the command ping 172.16.31.3. Two PDUs will be generated. The ping command cannot complete the ICMP packet without knowing the MAC address of the destination. So the computer sends an ARP broadcast frame to find the MAC address of the destination.
The gateway address of the router interface is stored in the IPv4 configuration of the hosts . If the receiving host is not on the same network, the source uses the ARP process to determine a MAC address for the router interface serving as the gateway.