Whether you are familiar with the IP address, once you access to the network, then you would unconsciously use IP addresses, since any subnet or subnet for communication between the communication between workstations, are by IP address to achieve correct routing purposes! any subnet IP address space, network managers are often under the subnet size and recent development plan, to a reasonable distribution, because each subnet that contains the number of workstations may not be the same, perhaps Some subnets contain a large number of workstations, and some subnet containing only two or three computers, if distributed equally to each subnet IP address space, it will result in some sub-network IP address resource shortages, Some sub-network IP address resource is idle. So how can quickly and effectively correct for different subnet IP address space divided into good, so that each subnet can be reasonable to use the limited IP address resources? Despite the fact that subnet size and recent development plan, using the manual calculation method good distribution for different subnet IP address space different, but the method of division of IP address space is not conducive to efficient management and maintenance of local area network. For this reason, the author carried out a struggling Internet search tools specifically got a Wildcard as our "helper," and use it you can quickly plan good for each subnet IP address space. Do not believe so, please come together on a trip to Wildcard planning tool in the fast LAN IP addresses in style now!
1 Wildcard understanding of "skills"
Wildcard tool is actually a small size of the routing management package, which contains a total of three subroutines, using the "subnet mask calculator" program to quickly divide a good LAN IP address space, using the "wildcard mask monitor" can understand what the current subnet is the size of the network using "decimal IP Calculator" allows IP addresses fast hex and decimal conversion. In addition, the tool also a great "bright spot" is not required to install, you can use immediately to run, so it take up very little system resources.
2, subnet IP address space allocation
In general, for any of the subnet IP address space allocation, both need to understand subnet contains a number of workstations, to reconsider the future scalability of subnets. For example, if the units of local area network in a subnet containing over 40 workstations, taking into account the size of the upgrade after the network expansion, we must be more than 40 for the subnet IP address Fenpei number, but the distribution of the number of IP addresses You should not be too more, otherwise it will create multiple IP address resources are not fully utilized in this subnet.
To quickly and accurately to meet the planning requirements above, you can find the Wildcard setup tool and use the mouse directly to double-click it, then you will see program interface;
Click the interface "Subnet Mask Calculator" button, open the Settings window shown in Figure 2; in the window box, enter IP address assigned to the subnet need to start IP address, and then in the sub- net mask is continuously click the right arrow button to adjust the number of bits in the subnet mask, and observe the window the following IP address range; Once you find under a subnet mask, IP address range compared with 40 close to, but also in the context of the workstation can accommodate more than 40, then the corresponding point on the show that under the mask of IP address space address is the subnet IP address space.
3, see the available IP address resources
The author's local area network unit through the radio and television sector SDH channel, directly with the Provincial Science and Technology Department superiors, interconnected communications network center, the superior administrative unit assigned to our units in the server's IP address is 210.73.140.2, the network mask address is 255.255.255.192 , how do we know what are the IP address resource, you can use the local LAN? In fact, very simple, if you click the "Subnet Mask Calculator" button, set the subnet mask in the pop-up interface, the "210.73.140.2" Fill in "Host IP" text box, while in the "mask bit" setting key office click the right arrow button to adjust the subnet mask of 255.255.255.192, so you will be able to figure 3 as the "scope of the current host:" Office, see the local LAN IP addresses can use the number to 62, the specific resources you can use the IP address range "210.73.140.1 to 210.73.140.62".
4, view the local area network scale
Different according to the size of local area network, IP addresses can usually be divided into class A address, B class address, C class of addresses, D, Address, E class addresses, including Class A IP address is usually assigned to the specialized use of the larger local area network, Each Class A network address can include more than 1600 million workstations; B class IP address commonly used in medium-sized local area network, each class B network address to connect up to more than 60,000 computers; C class IP address assigned to main smaller-scale local area network, each class C network address can only contain up to 254 workstations. Class D IP address and the address of the above three types are different, these addresses are not used for a specific LAN subnet, or for a specific workstation platform, which is primarily used for multi-point broadcast; E class of IP addresses actually is a kind of special network address, it neither specific LAN subnet, or for a specific workstation, such networks usually each byte address 255 or 0, the simple fact that E class of IP address is "0.0.0.0" or "255.255.255.255" these two addresses, "255.255.255.255" address is usually used to indicate the current network broadcast address. IP type according to different local area network is generally divided into the A class of network size, B class network, C class network, then we find out how fast your local area network unit, is it any size of network it?
Is very simple, as long as you open the local LAN Renyiyitai workstations, access to the workstation's network properties settings window, select "Internet Protocol (Tcp / Ip)" option, then click the click the "Properties" button in the Any subsequent property interface, click the "General" tab, and in the corresponding tab page, find the station currently used IP address;
Wildcard tool then run the installation program, open the corresponding program interface, and then click one of the "Subnet Mask Calculator" button, enter the subnet mask setting page; then look above to get the IP address directly to fill in "Host IP" text box, then Wildcard tool will in the "Host IP" text box on the right, pop-up the current size of the network. For example, if input "210.73.140.2" address, then, Wildcard tool will automatically tell you the current network address belongs to class C network, the network can contain up to 254 workstations.
5, view the subnet network ID
It is usually the IP address assigned to the workstation is divided into two parts human, one part is used to identify the network address of the workstation where the subnet, the other part identifies the host address. In general, in the same subnet to all workstations using the same network identification address corresponding to each subnet in the host workstation has a unique identity and its counterpart. According to the above principles, IP addresses in the 4 groups were divided into two figures, of which one is the subnet network ID, another one is the host identity; for example, at a subnet IP address of a workstation 210.73.140.7 , for the IP address, and we can understand this for the current workstation is located 210.73.140.0 subnet the network, and its host identity should be 7, the words together, 210.73.140.7 is the Internet workstation for independent identity. As the scale of the network, the network identity is not the same, even in the same network subnet in different sizes, network identity is not the same; therefore to know exactly what network subnet of a network logo, must be allocated according to to the network's IP address and mask address can only be determined jointly. To quickly view a subnet of the network ID, they can "help" Wildcard tools to achieve:
Open the local LAN Renyiyitai workstations, access to the workstation's network properties settings window, select "Internet Protocol (Tcp / Ip)" option, then click click "Properties" button and set the properties in the subsequent interface, click the "General" tab, and in the corresponding tab page, find the station currently used IP address and mask address;
Wildcard program interface then click the "subnet mask calculator" button to open the subnet mask setting window; then look above to get the IP address directly entered in the "Host IP" text box, then "cover code bit "set to get the mask and the current to find the same address. Wildcard tool can then identify the subnet Department, to tell you the current subnet's network ID address. For instance, if you enter the IP address "210.73.140.7", network mask address is "255.255.255.192", then Wildcard tool will automatically calculate the current subnet of the network identified as "210.73.140.0".
Tip: In the distribution network to the LAN subnet address identifies the need to ensure that the current subnet's network ID can not identify the other subnets same address, specifically, for each subnet must be assigned a unique identification address; Also in the distribution network identification address, please do not identify the network address of the beginning of the number set to "127", because the class A network address, the figures "127" at the beginning of the IP addresses specifically reserved for internal loopback function. Of course, the network address of the beginning of the identification number can not be set to "255" and "0", because "255" at the beginning of the IP addresses specifically for network broadcast, "0" at the beginning of the IP address dedicated to that on the local host.
6, for a way to access the network
Whether access to the network server or workstation, all can be achieved through IP Address purpose of the visit; and our common IP address is constituted by the 32-bit binary number, for example, a network IP address of a server, "11010010010010011000110000000110" Obviously, if the use of such dazzling figures 0,1 to access the network would not only enter the more cumbersome, but not much easier to remember. In order to facilitate memory and input, we artificially 32 "0", "1" digital divided into four groups, each 8-bit binary number into a groups of numbers separated with the decimal point and then four groups of eight binary four groups were converted to a decimal number, this way in front of the server's IP address can be written as "210.73.140.6", since we can "http://210.73.140.6" or "ftp://210.73.140.6" form to access the station server.
In addition to the 32-bit binary number of IP addresses into four groups of decimal numbers of IP addresses to access the network server, we can also use Wildcard tools IP address translation function 32-bit binary number of the IP address directly into a decimal the number of IP addresses, to achieve the purpose of access to the network. For example, to "210.73.140.6" IP address into a decimal number of the IP address, just follow the following steps to operate on it:
First, double-click the Wildcard setup tools, open the main interface of the program; and then click the interface in the "decimal IP Calculator" button, open the setup interface; in the interface "IP address" text box, enter the required direct access server IP address, for example, enter "210.73.140.6";
Then click "calculate Decimal" button, you can know the decimal IP address "3528035334", later you can also "http://3528035334" or "ftp://3528035334" form to access the "210.73.140.6" server the. Of course, in "decimal IP Calculator" settings window, you can also quickly convert decimal IP address IP address of the ordinary.