Saturday, 7 January 2023

subnetting

 172.16.0.0/16


172.16.0.0/20


255.255.11110000.00000000


SM-255.255.240.0


no ip ip=2^12 -2=4094


no of subnets=2^4=16



block size=256-240=16


0,16,32,48.....240


172.16.0.0/20


172.16.0.16/20


172.16.0.32/20


5 ips are reserved by aws---



192.168.20.0/24


192.168.20.0/25

255.255.255.10000000

255.255.255.128

no ip ip=2^7 -2=126



no of subnets=2^1=2



block size=256-128=128


192.168.20.0/25

192.168.20.128/25


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