subnet

问题 If I have a subnet mask e.g. 255.255.255.0 and an ip address 192.168.1.5 , is there an easy way to determine all the possible ip addresses within this subnet? In this case: 192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4 ... ... 192.168.1.252 192.168.1.253 192.168.1.254 192.168.1.255 All I found until now are heavy overloaded .net libraries. Isn't there any native way to solve this with the default namespaces? 回答1: To determine the adress range follow these steps : 1) Take your subnet mask

问题 I want to calculate the broadcast address for: IP: 192.168.3.1 Subnet: 255.255.255.0 = 192.168.3.255 in C. I know the way (doing fancy bitwise OR's between the inversed IP and subnet), but my problem is I come from the green fields of MacOSX Cocoa programing. I looked into the source of ipcal, but wasn't able to integrate it into my code base. There must be a simple ten lines of code somewhere on the internet, I just can't find it. Could someone point me to a short code example of how to do

问题 I'm trying to create NSG and then attach it to a existing subnet. I've successfully able to create the NSG but it throws an error while attaching it to subnet. Stating that the address prefix cannot be null. Do we have to pass the address prefix as well? in below function? params_create = azure.mgmt.network.models.Subnet( Below is the full code snippet. from azure.common.credentials import ServicePrincipalCredentials from azure.mgmt.resource import ResourceManagementClient from azure.mgmt

问题 The aim of the template is to add subnets to an existing Vnet but when executing it using the powershell command New-AzureRmResourceGroupDeployment -Name testing -ResourceGroupName rgname -TemplateFile C:\Test\deploy.json -TemplateParameterFile C:\Test\parameterfile.json The following error is displayed and I really cant understand what it means.Here is the error * "Error: Code=InvalidRequestContent; Message=The request content was invalid and could not be deserialized: 'Cannot populate JSON

问题 Hi all, I am looking for a better solution for checking / calculating if an IP-address is in the same subnet like your iPhone. The background: I am looking up devices by the Zeroconf / Bonjour and this devices can have multiple IP-addresses. So I want to check which of them can be reached by my device. I Thought the easiest way is to take the extern IP and connect it with my subnet-mask, but I havenot found any way to do it directly (need both as int), so I made a workaround. The code:

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I've been working on this problem but haven't made much progress. Could someone help me out? Your company is assigned the network address 214.56.78.0/24. The company has five work groups to support: Administration (11 hosts), Sales (32 hosts), Customer Support (41 hosts), Support servers (8 hosts), Web and

问题 I wanted to get the IP address and the subnet mask. Now the IP part is done, however I couldn't find any socket function that would return a structure with the subnet mask in it. Does a socket function exist, that returns it in a structure? Thanks! 回答1: In windows using IPHelper. #include <winsock2.h> #include <iphlpapi.h> #include <stdio.h> #include <stdlib.h> #pragma comment(lib, "IPHLPAPI.lib") #define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x)) #define FREE(x) HeapFree(GetProcessHeap(),

问题 I know I can get new IP address by going to Elastic IPs --> Allocate new address but by doing this I always get IPs in different subnet range. I want to IPs with same subnet. I have two ec2 instance, Actually I want a 2 new IP address with in same subnet range! Am trying to join two instances which is in same ZONE and same VPC, but their primary private IPs are in different subnet, so this is the issue! I Have added a secondary Private IP directly to both instances with same subnet range ( by

问题 I have a task to complete in C#. I have a Subnet Mask: 255.255.128.0. I need to find the number of bits in the Subnet Mask, which would be, in this case, 17. However, I need to be able to do this in C# WITHOUT the use of the System.Net library (the system I am programming in does not have access to this library). It seems like the process should be something like: 1) Split the Subnet Mask into Octets. 2) Convert the Octets to be binary. 3) Count the number of Ones in each Octet. 4) Output the

问题 I have been handed the task of creating a function in python (3.1) that will take a CIDR notation and return the list of possible ip addresses. I have looked around python.org and found this: http://docs.python.org/dev/py3k/library/ipaddr.html but i haven't seen anything that will fill this need... I would be very grateful for any assistance anyone cares to kick my way. thanks in advance. :-) 回答1: If you aren't married to using the built-in module, there is a project called netaddr that is