From the course: Learning the Packet Delivery Process

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Step 3: ARP helps locate the MAC addresses (remote)

Step 3: ARP helps locate the MAC addresses (remote)

From the course: Learning the Packet Delivery Process

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Step 3: ARP helps locate the MAC addresses (remote)

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- [Instructor] Continuing on from the last movie, we're now at step three of the remote data delivery process. The internet layer can discern the source and destination IP addresses, and thus determine that the source and recipient are on two different networks. As you learned in a previous movie, it's easy to see if two addresses are on the same network or not, by comparing their IP addresses. You can see from my router properties page, that the addresses here all start with 192.168.1. And anything that doesn't start with that, isn't going to be local to my network. Here's my router. And here's my phone. You'd see the same three numbers on every device listed here. Just like with local hosts though, the internet layer still needs to locate the recipient host to MAC address. Once it has this, it can complete its header and forward the packet to the next layer. There are several steps to obtaining the MAC address of a…

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