Subnetting Questions 27 | Find the first valid host on the network

Subnetting Questions 27

Enter the first valid host on the network that the host 10.253.144.108/22 is a part of

Solution

Hence, the IP Address starts from 10 it indicates it is a Class A Network. By default, in Class A network 8 bits are reserved for the network and 24 bits are reserved for the host.

A/Q the CIDR value is /22. So we have to borrow another 14 bits (8 + 14 = 22)

11111111.11111111.11111100.00000000

So, its Subnet Mask is 255.255.252.0

Let’s count the number of subnets

2ⁿ (Here, n indicates the total number of network bits borrowed)

2¹⁴ = 16384 Subnets are available.

Let’s count the number of IP Address on each network

2ⁿ (Here, n indicates the total number of host bits)

2¹⁰ = 1024 IP Address is available on each network

List of top 5 subnets (Network)

Hence, the IP Address 10.253.144.108 falls under the first network (10.253.144.0).

Therefore, 10.253.144.1 is the first valid host.

Class A Subnetting Tutorial

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