find subnet

#提取IP地址和子网掩码 [[email protected]~]#ifconfigeth0|grep 'inet Addr'|awk-F'[ :]+' '{print $4 "/" $8}'192.168.16.110/255.255.255.0[[Email protected]~]# #查外网IP地址 [[email protected]~]# curl-s Ipecho.net/plain;Echo114.93.99.39#查外网ip地址是什么宽带114.93.99.39IP:114.93.99.39from: Shanghai Telecom [[email protected]~]##输出IP地址是绿色的, the subnet mask is red.[Email protected] wyb]#CatQ.SH #!/bin/baship=192.168.16.1netmask=255.255.255.0Green () {Echo-E"\033[32m$1\033[0m"}red

I open "edit"-"Virtual network Editor" menu to modify network settingsHint Subnet mask error as shownOnline query, use the following methods to solve the problemThis virtual network editor is for you to add a network card, you add Vmnet1 is in your real computer added a virtual network card, this address is the network card in the "network segment", Remember, is the network segment! Instead of the IP address, because there is no 192.168.1.64 this netw

How to use commands to change the IP, DNS, subnet mask of Linux, and add a Linux virtual machine on the virtual machine (Vitrualbox);Installation method: Http://pan.baidu.com/s/1sjJPhP7After installation, go to the Linux desktop, a desktop like this:Press CTRL+ALT+F2 to enter the command line window, then log in and enter it after the login is successful:VI /ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ETHXOpens the Settings window, by default, you have only

Oracle linux:ping to IP addresses on non-local subnet returns "Ping:sendmsg:Network are Down" (document ID 1625215.1) applies To: linux os-version Oracle linux 5.9 with Unbreakable Enterprise Kernel [2.6.39] and later Linux x86 Linux x86-64 Symptoms Issuing a ping (8) to a IP address on a non-local subnet reports "Network are down" message as described below. However, other applications/

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 machineName ;}Get local IP Address /** Name: get_localmachine_ip * function: Get the local IP Ad

Because do IDC after sale, now contact some network IP and subnet division, ABCD no class address of some division, simple look. Write the key.The network address portion of the IP address cannot be set to either "All 1" or "all 0".The subnet portion of the IP address cannot be set to "all 1" or "all 0".The host address portion of the IP address cannot be set to all 1 or all 0.Network 1 2 7. X. X. x cannot

("\ NNetwork card: {0 }", Devicename ); Servicename = servicekey + deviceservicename +"\ Parameters \ Tcpip"; Networkkey = start. opensubkey (servicename ); If(Networkkey =Null) { Console. Writeline ("No IP configuration set"); } Else { String[] Ipaddresses = (String[]) Networkkey. getvalue ("IPaddress"); String[] Defaultgateways = (String[]) Networkkey. getvalue ("DefaultGateway"); String[] Subnetmasks = (String[]) Networkkey. getvalue ("Subnetmask"); Foreach(StringIPaddressInIpaddre

In Linux, view the gateway, subnet mask, IP address, and broadcast address. [Root @ glnode04 vm01-CentOS-5.5] # Cat/etc/sysconfig/network-scripts/ifcfg-eth0Device = eth0Onboot = YesBootproto = noneIpaddr = 10.10.111.4 IP AddressNetmask = 255.255.255.0.0 Subnet MaskGateway = 10.10.11.254 GatewayType = EthernetUserctl = NoIpv6init = YesPeerdns = Yes [root @ glnode04 vm01-CentOS-5.5] # ifconfig eth0 link

JS verification IP address, subnet mask, Gateway and MAC Method, jsmac This article describes how to verify the IP address, subnet mask, gateway, and MAC in JS. Share it with you for your reference. The details are as follows: I hope this article will help you design javascript programs.

The following small series for everyone to bring an article WinForm C # get the MAC address, IP address, subnet mask, the default gateway instance. Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look at it with a little knitting. 1. Add an assembly 2. Introduce namespaces Using System.Management; 3. Methods ManagementClass mc = new ManagementClass ("Win32_NetworkAdapterConfiguration"); M

This article mainly introduces how to use Python to calculate network segments based on IP addresses and subnet masks. It involves Python character string operation techniques based on the Linux platform and has some reference value, for more information about how to use Python to calculate network segments based on IP addresses and subnet masks, see the following example. Share it with you for your referen

function: calculates the subnet IP range and the number of available IPsimplementation: use BC tools to calculate, please pre-install, do not checkInsufficient: the IP address and mask format are not judgeduse: provide two parameters, address and mask, output format: Host number-network number [number of available IP]Demonstrate:650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M02/7F/00/wKioL1cPf1fjYzF4AACNhyJYDA8531.png "title=" 1.png " alt= "W

Along with the gradual expansion of the LAN scale, a network is often divided into multiple different subnets, so as to meet the work requirements of different subnets to achieve personalized management requirements. A large LAN usually uses DHCP servers to assign IP addresses to workstations. However, once a LAN is divided into multiple subnets, do we have to create DHCP servers in different subnets to provide IP Address Allocation services for workstations in each

The above configuration is a Hyper-V installation of CentOS 7.0The way to install a DHCP server isYum Install DHCPDAfter installation and configuration, there is an error when runningThe error prompts are as follows: for Start (no IPV4 addresses.)--- error one .... configured to listenon any interfaces! ---error two.-----------------------------------Analyze the problem:The reason for the error is: There is no DHCPD module in the/etc/rc.d/init.d/directory.Workaround:Copy/USR/BIN/DHCPD to/etc/rc.

Nowadays, the Internet is playing an increasingly important role in our daily lives and work. It can be said that without the Internet, we will not be able to work and live normally. As a programmer, most of the programs we write will also be related to the network. To use the network, you must first set the network configuration of the machine. The manual setting method is obviously not desirable, so we need to let the program complete it for us. The following is a very common Demo of C # setti

// Obtain the subnet mask FunctionQstring getlocalnetmask () // Modify the subnetmask Function Qstring setlocalnetmask (const char * sznetmask)

This example describes a Python implementation method that calculates a network segment based on an IP address and subnet mask. Share to everyone for your reference. Specific as follows: This code is tested in the Linux environment 2.6.6python version! #!/usr/bin/env python#_*_encoding:utf-8_*_#input your IP address and netmask to figure out your network. #申明: This script is interactive, by default Please execute Python network.pyfrom IPy import ip

using ASIC hardware to achieve routing and switching at line speed, the latter represents the fast ip of 3com, and the virtual fast Security Network of cabletron. The method used is to route the network at the first layer, then, the second layer switches the end-to-end network stream data group. This is the policy of "one route, then switch. The powerful functions of the layer-3 Exchange router are as follows: 1) routes are calculated based on the L3 protocol. The supported routing protocols i

;Padapterinfo = (Ip_adapter_info *) malloc (sizeof (ip_adapter_info));ULONG Uloutbuflen;Get structure size for GetAdaptersInfo parametersUloutbuflen = sizeof (Ip_adapter_info);First call Getadapterinfo get Uloutbuflen sizeCall the GetAdaptersInfo function to populate the Pipadapterinfo pointer variable, where the Uloutbuflen parameter is both an input and an outputif (GetAdaptersInfo (padapterinfo, uloutbuflen) = = Error_buffer_overflow){Free (padapterinfo);Padapterinfo = (Ip_adapter_info *) mal

In this paper, a complete example of the implementation of C + + to obtain IP, subnet mask, gateway, DNS and other local network parameters of the method for your reference, the specific complete example is as follows: #pragma comment (lib, "Ws2_32.lib") #include