studing
2016년 02월 18일
보안 3일차-------------------------------------------------------------------------------------
A
C class----------------------------------------
NNNNNNNN-NNNNNNNN-NNNNNNNN-HHHHHHHH
NNNNNNNN-NNNNNNNN-NNNNNNNN-NHHHHHHH (2^n = 2 따라서 n = 1)
NNNNNNNN-NNNNNNNN-NNNNNNNN-0HHHHHHH
->NNNNNNNN-NNNNNNNN-NNNNNNNN-00000000 ~ NNNNNNNN-NNNNNNNN-NNNNNNNN-01111111
->NNNNNNNN-NNNNNNNN-NNNNNNNN-10000000 ~ NNNNNNNN-NNNNNNNN-NNNNNNNN-11111111
200.100.50.0
200.100.50.128/25
NNNNNNNN-NNNNNNNN-NNNNNNNN-NHHHHHHH (2^n = 2 따라서 n = 1)
NNNNNNNN-NNNNNNNN-NNNNNNNN-1NHHHHHH
NNNNNNNN-NNNNNNNN-NNNNNNNN-10HHHHHH -> NNNNNNNN-NNNNNNNN-NNNNNNNN-10000000
~NNNNNNNN-NNNNNNNN-NNNNNNNN-10111111
200.100.50.128/26 ~ 200.100.50.191/26
Network Address : 200.100.50.128/26
Host Address : 200.100.50.129/26 ~ 200.100.50.190/26
Broadcast Address: 200.100.50.191/26
Subnet Mask : 255.255.255.192
NNNNNNNN-NNNNNNNN-NNNNNNNN-11HHHHHH -> NNNNNNNN-NNNNNNNN-NNNNNNNN-11000000
~NNNNNNNN-NNNNNNNN-NNNNNNNN-11111111
200.100.50.192/26 ~ 200.100.50.255/26
Network Address : 200.100.50.192/26
Host Address : 200.100.50.193/26 ~ 200.100.50.254/26
Broadcast Address: 200.100.50.255/26
Subnet Mask : 255.255.255.192
호스트가 32대가 들어갈 수 있는 최소한의 네트워크는? 2^n -2(Network, Broad) >=32
C - class
192.168.20.0/24 -> 256-2 = 254
NNNNNNNN-NNNNNNNN-NNNNNNNN-NHHHHHHH (2^n = 2 따라서 n = 1)
NNNNNNNN-NNNNNNNN-NNNNNNNN-0HHHHHHH
->NNNNNNNN-NNNNNNNN-NNNNNNNN-00000000 ~ NNNNNNNN-NNNNNNNN-NNNNNNNN-01111111
192.168.20.0/25 ~ 192.168.20.127/25 128-2 = 126
->
NNNNNNNN-NNNNNNNN-NNNNNNNN-1HHHHHHH
->NNNNNNNN-NNNNNNNN-NNNNNNNN-10000000 ~ NNNNNNNN-NNNNNNNN-NNNNNNNN-11111111
192.168.20.128/25 ~ 192.168.20.255/25
NNNNNNNN-NNNNNNNN-NNNNNNNN-1NHHHHHH
NNNNNNNN-NNNNNNNN-NNNNNNNN-10HHHHHH
->192.168.20.128/26 ~ 192.168.20.191/26 64-2 = 62
NNNNNNNN-NNNNNNNN-NNNNNNNN-11HHHHHH
->192.168.20.192/26 ~ 192.168.20.255/26
P2P Network ->NNNNNNNN-NNNNNNNN-NNNNNNNN-NNNNNNNHH 01 --- 10
192.168.20.0/30
255.255.255.255 상징적 의미를 가진다.
192.168.0.101/32
------------------(AND)
192.168.0.101/32
->IP임을 알려준다
