我是一名网络程序员,不熟悉网络,我有下一个问题我在互联网上搜索了很多文章,但没有帮助,我发现理解子网很困难。。我向任何能帮助我解决这个问题的人宣扬:)
问题是:
您被分配了一个B类网络地址:165.10.0.0/16
Departments Number of employees D1 800 D2 200 D3 50 D4 1600 D5 210 D6 60 D7 60 D8 36 D9 210
如何使用FLSM方法将这些地址分配到各个部门?
• Max host in D4 which is 1600 and will take it to calculate subnet
• Address Size : 2^11-2=2046
• Subnet Mask : 255.255.248.0
• To calculate new subnet mask: 256 - 248 = 8
• 8 between networks and each one has 2046 addresses.
Dep Number of Employees Address Size Subnet Address
Subnet Mask Start - End IP Broadcast Address
D4 1600 2046 165.10.0.0/21 255.255.248.0 165.10.0.1 - 165.10.0.254 165.10.0.255
D1 800 2046 165.10.8.0/21
255.255.248.0 165.10.8.1 - 165.10.8.254 165.10.8.255
D5 210 2046 165.10.16.0/21
255.255.248.0 165.10.16.1 - 165.10.16.254 165.10.16.255
D9 210 2046 165.10.24.0/21
255.255.248.0 165.10.24.1 - 165.10.24.254 165.10.24.255
D2 200 2046 165.10.32.0/21
255.255.248.0 165.10.32.1 - 165.10.32.254 165.10.32.255
D6 60 2046 165.10.40.0/21
255.255.248.0 165.10.40.1 - 165.10.40.254 165.10.40.255
D7 60 2046 165.10.48.0/21
255.255.248.0 165.10.48.1 - 165.10.48.254 165.10.48.255
D3 50 2046 165.10.56.0/21
255.255.248.0 165.10.56.1 - 165.10.56.254 165.10.56.255
D8 36 2046 165.10.64.0/21
255.255.248.0 165.10.64.1 - 165.10.64.254 165.10.64.255
很抱歉格式不正确的文本,我无法将表格粘贴到这里。。
主机位将为11…意味着每个n/w将有2^11个主机N/w位将为21…意味着将有(16-11)ie 5.ie 2^5 N/w ie 32 N/wSM=255.255.248.0