Secure Network has now become a need of any organization. The security threats are increasing day by day and making high speed wired/wireless network and internet services, insecure and unreliable. Now – a – days security measures works more importantly towards fulfilling the cutting edge demands of today’s growing industries. The need is also induced in to the areas like defense, where secure and authenticated access of resources are the key issues related to information security. In this paper Author has described the important measures and parameters regarding large industry/organizational requirements for establishing a secure network. Wi-Fi networks are very common in providing wireless network access to different resources and connecting various devices wirelessly.