You could calculate it in this way,
for 172.108.168.0/24, it includes from 172.108.168.0 to 225
now for a mask of 21, 24-21=3
11111000=248, the netmask is 255.255.248.0, it covers addreses of 8*256.
and for 172.108.168.0/21, it covers from 172.108.168.0 to 172.108.175.255.
> I have a guestion regarding VLSM
> How many subnet addresses can be summarized by 172.108.168.0/21?
> how could you calculate it?
bj(ږKhʋ~(X{z moj(&
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