Subnetting Questions 36 | Find the CIDR value from the subnet mask

Subnetting Questions 36

What is the shorthand corresponding to a subnet mask of 255.0.0.0?

or

Find the CIDR value from the subnet mask 255.0.0.0?

Solution

255.0.0.0

(2⁷ + 2⁶ + 2⁵ + 2⁴ + 2³ + 2² + 2¹ + 2⁰) . 0 . 0 . 0

11111111 . 00000000 . 00000000 . 00000000

Hence, there is 8 network bits. So the CIDR value is /8