關於部落格
  • 115493

    累積人氣

  • 50

    今日人氣

    0

    追蹤人氣

子網段切割

 
Setp1:
依Class B 算
19-16=3 2^3=8 ; 所以可以從Class B中切出8個子網 ;
每個子網段的 network id為: 
 
000:xxxxx = 172.17.0.0 /19
001:xxxxx = 172.17.32.0 /19
010:xxxxx = 172.17.64.0 /19
011:xxxxx = 172.17.96.0 /19
100:xxxxx = 72.17.128.0 /19
101:xxxxx = 172.17.160.0 /19
110:xxxxx = 172.17.192.0 /19
111:xxxxx = 172.17.224.0 /19
 
  
Step2:
每個子網段中的host ip 數
32-19=13 ;
2^N-2 = 2^13-2= 8190
 
 
Step3:
可用IP列表如下;

可用IP列表如下;
000:00000.00000001 ~ 000:11111.11111110 =NID 172.17.0.0 ; Broadcast 172.17.31.255

first ip  172.17.0.1 last ip 172.17.31.254

 

001:00000.00000001 ~ 001:11111.11111110 =NID 172.17.32.0 ; Broadcast 172.17.63.255

first ip  172.17.32.1 last ip 172.17.63.254

 

010:00000.00000001 ~ 010:11111.11111110 = NID 172.17.64.0 ; Broadcast 172.17.95.255

 first ip  172.17.64.1 last ip 172.17.95.254

 

011:00000.00000001 ~ 011:11111.11111110 = NID 172.17.96.0 ; Broadcast 172.17.127.255

first ip  172.17.96.1 last ip 172.17.127.254

 

100:00000.00000001 ~ 100:11111.11111110 = NID 172.17.128.0  ; Broadcast 172.17.159.255

first ip  172.17.128.1 last ip 172.17.159.254

 

101:00000.00000001 ~ 101:11111.11111110 = NID 172.17.160.0 ; Broadcast 172.17.191.255

first ip  172.17.160.1 last ip 172.17.191.254

 

110:00000.00000001 ~ 110:11111.11111110 = NID 172.17.192.0 ; Broadcast 172.17.223.255

 first ip  172.17.192.1 last ip 172.17.223.254

 

111:00000.00000001 ~ 111:11111.11111110 = NID 172.17.224.0 ; Broadcast 172.17.255.255

first ip  172.17.224.1 last ip 172.17.255.254

相簿設定
標籤設定
相簿狀態