javascript get mac address of client machine

I've been using this method for a few years now for a couple of different clients and it works just limits you to windows devices. and pass this in through the querystring to your web application. On startup, get the systems mac address and/or device name, logged in user name, etc. One other possibility is creating a hybrid application that is basically a Click-Once windows application that contains a single form containing a browser control. As usual, session timeouts are the de accordingly! This system is working well for a customer having around 50 iPads/locations. Once a device has been validated the appropriate cookies are also written/rewritten to the client.but you can't trust cookies. We came up with a method that encodes the device name and a couple of other key elements into the querystring used to launch the app. I recently had a web application that had the same requirements to identify devices for record keeping. You are only going to get the gateway's IP address/MAC. To always identify the computer visiting your website, you will have to write a system application on the visiting computer.

Arp can output the ARP table of the system and modify it. You need to resolve it on your own using the arp command.

Cookies will not work if the user has turned off the local cookie support in the browser. First, the clients mac address isnt available in php globals like REMOTEADDRESS (the IP address of the client). As others have mentioned, there is no real fool-proof way of identifying a particular device in a web application. Next time, if the user visits your website through a different browser, the cookies will be stored separately on both browsers.

Javascript get mac address of client machine