Subnetting /22 query

black_lionblack_lion Registered Users Posts: 4 ■□□□□□□□□□
Hi all. I have been given the address: /22 which in binary is 01111010.00010110.00000000.00000000 (bold is 10 bits left for hosts)

and its subnet mask is in binary is 11111111.11111111.11111100.00000000

I am trying to calculate new subnet address when 8 bits left for host (this is a network prefix of /24)

This is what I did: converted to binary with network prefix of /24 is:

01111010.00010110.00000000.00000000 (bold shows 8 bits left for host)

and in decimal new subnet address from my understanding is /24

but correct answer is /24

Why does the 3rd octet is 2 and not 0?


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