17:55

Subnet Mask - Explained

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2 Using a Secondary IP Address

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Forwarding in Datagram Networks - Longest Prefix Matching

11:14

Subnetting made easy - for CCNA students and beginners

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6. The IP Route Table Routing

11:12

19. How to Find the Broadcast Address

13:33

subnetting is simple

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Packet Traveling - How Packets Move Through a Network