Learning Reflection 9

This week of Hardware and Network Fundamentals we went from learning with general subnet masks to learning what a borrowed subnet mask is.

172.168.242.1

255.255.0.0

bold = network addresses

underline = host bits

n=2

~In Binary~

172.168.242.1

10101100.10101000.11110010.00000001

255.255.192.0

11111111.11111111.11000000.00000000

172.168.192.0

10101100.10101000.11000000.00000000

~In Binary~

A borrowed subnet mask is when a general subnet mask (class B, 255.255.0.0) borrows let’s say 3 bits and the reason it does this is because it needs more network addresses also known as n. This makes the subnet mask 255.255.224.0 which then ends up with a new IP  address and less host bits.

the new IP would end up being, 172.168.192.0

Finally I posted some stuff on Diigo.com. Don’t know what it is go visit and give it a try.

*Psst: It’s a site where you can get some cool info sharing from other cool people, need to know something, ask, and get a direct link to a website!

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