Everything Hosts do to speak on the Internet - Part 2 - Networking Fundamentals - Lesson 3
Practical Networking・10 minutes read
The text discusses how data flows through the internet, focusing on communication between hosts and routers using MAC addresses and IP addresses. It explains the process of creating layer 3 and layer 2 headers for communication and the role of ARP in resolving MAC addresses.
Insights
- Hosts and routers in a network have both MAC addresses and IP addresses, with subnet masks determining network sizes.
- To communicate with hosts on different networks, a router is essential, as it acts as an intermediary that discards layer 2 headers and facilitates data transfer between different network segments.
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Recent questions
How does data flow through the internet?
It flows through hosts and routers with MAC and IP addresses.
What is the role of a router in networking?
It facilitates communication between hosts on different networks.
What are MAC addresses used for in networking?
They uniquely identify hosts and routers on a network.
What is the purpose of ARP in networking?
It resolves IP addresses to MAC addresses.
How do hosts communicate with each other on a network?
They use IP addresses and MAC addresses for communication.
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