공부4
IPv4 -->https://en.wikipedia.org/wiki/IPv4#Private_networks
<-------- C: class 192.168.0.0/24
C - class 192.168.0.0/24
(2^n = 2, 따라서 n = 1)
NNNNNNNN-NNNNNNNN-NNNNNNNN-HHHHHHHH
NNNNNNNN-NNNNNNNN-NNNNNNNN-NHHHHHHH
--> NNNNNNNN-NNNNNNNN-NNNNNNNN-0HHHHHHH
NNNNNNNN-NNNNNNNN-NNNNNNNN-00000000 ~ NNNNNNNN-NNNNNNNN-NNNNNNNN-01111111
192.168.0.0/25 ~ 192.168.0.127/25
[1]192.168.0.0/25
[2]192.168.0.1/25 ~ 192.168.0.126/25
[3]192.168.0.127/25
[4]GATEWAY:192.168.0.126/25
PC-PT (PC1:192.168.0.1/25)
PC-PT (PC2:192.168.0.2/25)
PC-PT (PC3:192.168.0.3/25)
--> NNNNNNNN-NNNNNNNN-NNNNNNNN-1HHHHHHH
NNNNNNNN-NNNNNNNN-NNNNNNNN-10000000 ~ NNNNNNNN-NNNNNNNN-NNNNNNNN-11111111
192.168.0.128/25 ~ 192.168.0.255/25
[1]192.168.0.128/25
[2]192.168.0.129/25 ~ 192.168.0.255/25
[3]192.168.0.255/25
[4]GATEWAY:192.168.0.254/25
PC-PT (PC1:192.168.0.129/25)
PC-PT (PC2:192.168.0.130/25)
PC-PT (PC3:192.168.0.131/25)