For IPv4 addresses, you may want to store them as an int unsigned and use the INET_ATON() and INET_NTOA() functions to return the IP address from its numeric value, and vice versa. Example: SELECT INET_ATON(‘127.0.0.1’); +————————+ | INET_ATON(‘127.0.0.1’) | +————————+ | 2130706433 | +————————+ 1 row in set (0.00 sec) SELECT INET_NTOA(‘2130706433’); +————————-+ | INET_NTOA(‘2130706433’) … Read more
String to int: int pack(byte[] bytes) { int val = 0; for (int i = 0; i < bytes.length; i++) { val <<= 8; val |= bytes[i] & 0xff; } return val; } pack(InetAddress.getByName(dottedString).getAddress()); Int to string: byte[] unpack(int bytes) { return new byte[] { (byte)((bytes >>> 24) & 0xff), (byte)((bytes >>> 16) & 0xff), … Read more
Your code retrieves the address as a “socket address” structure. getnameinfo() can be used to convert the address into a numerical IP string (code recycled from https://stackoverflow.com/a/25627545/1187415, now updated to Swift 2): let host = CFHostCreateWithName(nil,”www.google.com”).takeRetainedValue() CFHostStartInfoResolution(host, .Addresses, nil) var success: DarwinBoolean = false if let addresses = CFHostGetAddressing(host, &success)?.takeUnretainedValue() as NSArray?, let theAddress = … Read more
To answer the question with Python depends on your platform. I don’t have Windows handy, so the following solution works on the Linux box I wrote it on. A small change to the regular expression will make it work in OS X. First, you must ping the target. That will place the target — as … Read more
This may be the easiest way. Parse the output of the following commands: run a traceroute to find a router that is less than 3 hops out from your machine. run ping with the option to record the source route and parse the output. The first IP address in the recorded route is your public … Read more
No you can’t – IP addresses get reallocated and reassigned from time to time, so the mapping of IP to location will also change over time. If you want to find out the location that an IP address currently maps to you can either download a geolocation database, such as GeoLite from MaxMind, or use … Read more
Take a look at IP Address Calculations with C# on MSDN blogs. It contains an extension method (IsInSameSubnet) that should meet your needs as well as some other goodies. public static class IPAddressExtensions { public static IPAddress GetBroadcastAddress(this IPAddress address, IPAddress subnetMask) { byte[] ipAdressBytes = address.GetAddressBytes(); byte[] subnetMaskBytes = subnetMask.GetAddressBytes(); if (ipAdressBytes.Length != subnetMaskBytes.Length) … Read more
I’ve been looking for a way to get the IP address of the default gateway myself. I’m going to focus just on this – I didn’t need to get the MAC address of the default router, so this only partially answers the OP’s question. I didn’t like the idea of parsing the netstat output. Also, … Read more
You should use netifaces. It is designed to be cross-platform and contains specialised code for Windows together with a variety of generic versions that work on different UNIX/UNIX-like platforms. As of netifaces version 0.10.0, Python3 is supported. Usage Summary >>> from netifaces import AF_INET, AF_INET6, AF_LINK, AF_PACKET, AF_BRIDGE >>> import netifaces as ni >>> ni.interfaces() … Read more
I would just use the request.remote_ip that’s simple and it works. Any reason you need another method? See: Get real IP address in local Rails development environment for some other things you can do with client server ip’s.