Getting network building technology (5) - subnetting application of network technology to build entry (5) - Application subnetting

Getting network building technology (5) - Application subnetting

Description (2017-5-16 11:27:00):

topic:

A company has 530 computers form a peer LAN, and IP subnet mask number set up the most appropriate?

1. First category is selected from the IP address, A class too, Class C is not enough, it is selected from a class B is assumed to 188.188.0.0

2. The host bits set is n, the number of hosts = 2 ^ n-2> = 530, n = 10 when the number of hosts is 1024, just enough.

Bit 16 = 3. Therefore, the network, the host bits = 10, obtained subnet bits = 32-16-10 = 6.

4. 188.188.xxxx xx00.0000 0000, I used "x" represents the subnet bits, "0" indicates the host bits.

5. Therefore 255.255.1111 1100.0 subnet mask, i.e., 255.255.252.0.

6. ip division, a fourth segment 254 is a machine, the 1024 line is divided into four ip.

IP addresses are:

188.188.xxxx xx00.0

188.188.xxxx xx01.0

188.188.xxxx xx10.0

188.188.xxxx xx11.0

That is:

188.188.0.0

188.188.1.0

188.188.2.0

188.188.3.0

Each master bit is 1 IP 254

References:

http://www.cnblogs.com/henryhappier/archive/2010/01/25/1656174.html

In addition subnetting video, Zhangyun Quan good teacher:

http://edu.51cto.com/index.php?do=lesson&id=77552

11 yuan to open a quarter of members flattered ~