Basic journey of a packet


Basic journey of a packet is an excellent article for anyone who’s curious about how things actually work in the Internet, specially for new network and system admins. The author has done a very good job in explaining how a packet travels across the Internet. He provides a simple example of what happens when a user opens a browser (Firefox) to check his favorite web page. From packet creation on the your desktop to passing through switches, routers, and firewalls. Along the way he mentions about some complexities of Networking such transport protocols (TCP/UDP), Fragmentation, MTU, IP Layer, Physical Layer (MAC), NATs, TTL and so on.

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