decimal format.For example, 255.0.0.0 or 255.255.255.255.1282. Add a "/" symbol and a number ranging from 1 to 32 after the IP address. The number 1 to 32 indicates the length of the network identification bit in the subnet mask.For example, the subnet mask of 192.168.1.1/24 can also be expressed as 255.255.255.0.IP address
connection, and the second two 1 in the addition refer to the network address and broadcast address respectively. Because 13 is less than 16 (16 is equal to the 4 power of 2), the host space is 4 bits. While256-16 = 240Therefore, the subnet mask is 255.255.255.255.255.240.If a subnet has 14 hosts, many people often ma
binary.In 1.172.16.10.33/27,/27 indicates that the subnet mask is too large, that is, 27 All 12. according to the subnet mask 255.255.255.252, the network bit is 30 bits. Therefore, only the remaining two bits are used as the master bits, the network address is used for all the host bits, and the broadcast address is
hosts (as shown in the following figure, after dividing the subnet, the number of hosts that the entire network can identify will be reduced ).
6) Calculate the IP address range
With a custom subnet mask, we can obtain all possible IP address ranges of the network.
Proce
computer number. If the IP address is represented by a binary, the Class A IP address consists of a 1-byte network address and a 3-byte host address, and the highest bit of the network address must be "0". A class of IP address n
) Calculate the IP address range
With a custom subnet mask, we can obtain all possible IP address ranges of the network.
Body steps:
1. Write out the binary subnet address;
2. Convert the subn
The subnet mask cannot exist alone, it must be used in conjunction with an IP address. The subnet mask has only one function, which is to divide an IP address into two parts: network address and host address.The subnet mask settin
" and the subnet mask as "255.255.255.0". Among them, "1" has 24, representing the corresponding IP address to the left 24 bits is the network number; "0" has 8, representing the corresponding IP address to the right of the 8-bit is the host number. In this way, the subnet mask determines which of the 32-bit binary dig
International regulations: divide all IP addresses into A, B, C, D, and E. Class
DefaultSubnet Mask: Class A is 255.0.0.0; Class B is 255.255.0.0; Class C is 255.255.255.255.0. The subnet mask is a 32-bit address. It is used to shield a part of the IP address to distinguish the network ID and host ID, and shows whether the IP
change within the range of 255, so 256 IP addresses can be provided. However, the actual number of available IP addresses is 256-2, that is, 254, because the host number cannot be "0" or all "1 ". 2. The subnet mask is a network of "255.255.0.0". The two numbers can be 0 ~ Any change within the range of 255 can provide 2552 IP addresses. However, the actual numb
The subnet address and broadcast address are not given directly because the condition is given precedence. However, these two parameters require that we use the IP address and subnet mask to derive the subnet
Subnet Mask:What is a subnet mask subnet mask cannot exist alone,It must be used in conjunction with an IP address. The subnet mask has only one effect,is to divide an IP address into two parts: network
A few words to master subnet mask, IP address, host number, network number, network address, broadcast address1, 191.172.16.10.33/27 in the/27 that is, the subnet mask is 255.255.255.224 that is 27 full 12. From the subnet mask 255.255.255.252 to obtain its network bit is 30
, that subnet mask set how much appropriate? Let's set out a formula first.2 m-Time Square =560First, we determine that 2 must be greater than 8 square, because we know that 2 of 8 is 256, that is, the number of Class C IP maximum capacity of the computer, we from 9 times a trial 2 9 is 512, less than 560, 2 10 is 1024, it seems 2 of the most suitable. The subnet mask consists of a total of 32 bits, has det
To convert a subnet mask to an IP address range, you often need to convert the subnet mask to an IP address range for further computation. the conversion principle and Code are as follows: www.2cto.com is used to divide an IP
I don't need to analyze it professionally. I use dummies to answer questions.
This is a simulated question. Use this question as an example.
URL type: Of course, it is Class B.
Convert the IP address and subnet mask to binary, and then perform operations on them.
145.189.24.3 10010001 10111101 00011000 00000011
201710000224.0 11111111 11111111 11100000 00000000
Network
Turn from: http://hi.baidu.com/ww2000e/item/98f7b9f6d396d5b430c1994f
First of all, we look at a CCNA test common problem: The IP address of a host is 202.112.14.137, the mask is 255.255.255.224, requires computing the network address and broadcast address of the host network. 255.255.255.224 masks contain 256-224 = 32 IP addresses (including network
QT5 obtains the local IP address, computer name, network connection name, MAC address, subnet mask, and broadcast address.Get Host Name
/** Name: get_localmachine_name * function: get the name of the Local Machine * parameter: no * returned: QString */QString CafesClient: get_localmachine_name () {QString machineName = QHostInfo :: localHostName (); return machin
/** * Get broadcast address * */public static String getbroadcastaddress (string subnet, string IP) {string[] ips = ip.split ("\ \."); string[] subnets = subnet.split ("\ \"); StringBuffer sb = new StringBuffer (), for (int i = 0; i Get the Java implementation of the broadcast address based on the IP address and
We know that the IP address is a 4-byte (total 32bit) number, divided into 4 segments, 8 bits per segment, and periods separated by a period. For ease of expression and recognition, the IP address is expressed in decimal form such as 210.52.207.2, each paragraph can represent the maximum number of decimal not more than 255. The IP address consists of two parts, t
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