Is there any ready-made code available to get a MAC address from a remote machine (behind a router) when the client is executing a Web page? Something in Java Server Pages or Java would be preferable. We are implementing a media access control address authentication and authorization module for one of our applications. Is there any ready-made code available to get a MAC address from a remote machine (behind a router) when the client is executing a Web page? Something in Java Server Pages or Java would be preferable.You recently wrote that one might be able to obtain the MAC address from Windows machines by exploiting the fact that COM includes the system MAC address as part of identifiers it creates. Elaboration on this would be appreciated.The quick answer is no – there is not any ready-made, easy-to-use code available to automatically get a MAC address from a remote machine behind a router. If you really want to authenticate MAC addresses, then present a Web page that asks the user to copy his MAC address into a form. Exploiting the fact that Windows COM identifiers include the MAC address is overly intrusive and unreliable.A better solution for authenticating machines across network boundaries is to use personal digital certificates on authorized client machines. Related content news analysis Western Digital keeps HDDs relevant with major capacity boost Western Digital and rival Seagate are finding new ways to pack data onto disk platters, keeping them relevant in the age of solid-state drives (SSD). By Andy Patrizio Dec 06, 2023 4 mins Enterprise Storage Data Center news analysis Global network outage report and internet health check Cisco subsidiary ThousandEyes, which tracks internet and cloud traffic, provides Network World with weekly updates on the performance of ISPs, cloud service providers, and UCaaS providers. By Ann Bednarz and Tim Greene Dec 06, 2023 286 mins Networking news analysis Cisco uncorks AI-based security assistant to streamline enterprise protection With Cisco AI Assistant for Security, enterprises can use natural language to discover policies and get rule recommendations, identify misconfigured policies, and simplify complex workflows. By Michael Cooney Dec 06, 2023 3 mins Firewalls Generative AI Network Security news Nvidia’s new chips for China to be compliant with US curbs: Jensen Huang Nvidia’s AI-focused H20 GPUs bypass US restrictions on China’s silicon access, including limits on-chip performance and density. By Anirban Ghoshal Dec 06, 2023 3 mins CPUs and Processors CPUs and Processors Technology Industry Podcasts Videos Resources Events NEWSLETTERS Newsletter Promo Module Test Description for newsletter promo module. Please enter a valid email address Subscribe