Subnetting Mechanics

Subnetting Mechanics - Networking with TCP/IP Subnetting...

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Networking with TCP/IP Subnetting Mechanics
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2 Default Class Network/Host Bits
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3 Subnetting Basics To create subnets, some host bits are reassigned, or borrowed as network bits. Always start borrowing with the leftmost host bit, the one closest to the last network octet. Subnetting provides Addressing flexibility Broadcast containment (smaller Broadcast domains) Low level LAN security
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4 Class C example Write out the binary for the following address, borrowing 3 bits for subnets: 192.168.10. 0 Use black = network; red = sN ; green = host Class address first 11000000.10101000.00001010. 00000000 11000000.10101000.00001010. 000 00000
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5 Write out the binary for the following address, borrowing 5 bits for subnets: 147.10. 0 . 0 Class address first Class B example 10010011.00001010. 00000000 . 00000000 10010011.00001010. 00000 000 . 00000000
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6 Write out the binary for the following address, borrowing 12 bits for subnets: 28. 0 . 0 . 0 Class address first Class A example 00011100. 00000000 . 00000000 . 00000000 11000000. 00000000 . 0000 0000 . 00000000
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7 The subnet mask gives the router the information required to determine in which network and subnet a particular
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Subnetting Mechanics - Networking with TCP/IP Subnetting...

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