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by w7
652 days ago
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Something that I've noticed that somehow ends up lost when people learn "the model" is the encapsulation aspects. I don't know if it's missing in people's course work or what, but I've had to use http://www.tcpipguide.com/free/diagrams/ipencap.png many a times to explain how stuff like VPNs work, correct statements like "firewalls don't have a routing table, firewalling is layer 4", explain things like MTU and payload size, or why certain traffic doesn't go beyond a broadcast segment normally. Personally I think this is one of the better visualizations. |
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