Bit수에 의한 IP할당 수량

개수            NetMask              Bit수

254          255.255.255.0             24

128          255.255.255.128          25

64           255.255.255.192          26

32           255.255.255.224          27

16           255.255.255.240          28

8             255.255.255.248          29

4             255.255.255.252          30

2             255.255.255.254          31

1             255.255.255.255          32

* 장비셋팅 하실 때 도움 되실껍니다. ^^; 그럼 수고하세요