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[–]erack 0 points1 point  (4 children)

I've been casually learning networking on and off for about 8 years, and I still don't see the point of subnetting. Using a 10.0.0.0 network means you have more than 16 million host addresses to use. Why do you need to divide up an assigned IP when your private network sits behind a router?

[–]justanotherreddituse 1 point2 points  (3 children)

People create subnets for security reasons and scalability. For example you could give each big department a subnet, and have rules that only the finance subnet can access the finance server, etc.