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中国DOS联盟论坛 The time now is 2026-08-13 19:15 |
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| DOS媒体世界 & 网络技术 （多媒体室） » Network Subnetting Please help |
| Printable Version 1,367 / 1 |
| Floor1 樱儿 | Posted 2003-11-12 00:00 |
| 初级用户 Posts 1 Credits 105 | |
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A company has been assigned a standard network segment address: 202.22.22.0
This company has 5 departments, with 20 to 25 computers in each department. The requirement is that the departments must not be able to communicate directly with each other. Each department should be on a separate subnet. Work out these five subnets. What I want to know is the method. Specifically how to calculate it, and I also need the answer. If you were the one setting up the network, how would you do it. |
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| Floor2 lyuzhou | Posted 2003-11-12 00:00 |
| 初级用户 Posts 11 Credits 145 | |
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5 departments? Then use 3 binary bits (that allows up to 8 departments) to distinguish the subnets. 11100000 = 224
So, the subnet masks are all: 255.255.255.224 00000000 = 0 00100000 = 32 01000000 = 64 01100000 = 96 10000000 = 128 10100000 = 160 11000000 = 192 11100000 = 224 First subnet: 202.22.22.0, IPs from 1 to 30, broadcast: 202.22.22.31 Second subnet: 202.22.22.32, IPs from 33 to 62, broadcast: 202.22.22.63 Third subnet: 202.22.22.64, IPs from 65 to 94, broadcast: 202.22.22.95 .... Got it now... The subnet mask (netmask) is 255.255.255.224 for all of them |
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