Network access control is a method to strengthen the security of registered network by limiting the access to devices with a defined security policy. It acts as a solution to security issues such as malicious software (malware) and secures network vulnerabilities. Network access control recognizes user with their devices and their role in the network. Moreover, it provides end-point visibility and is integrated with other security platform to increase network efficiency. Network access control could be integrated with security infrastructure such as next generation firewall (NGFW) and security information and event management (SIEM) providing alerts to intrusion attempt and blocking devices to provide security.
The network access control is based on two design module pre-admission access and post-admission access design. In pre-admission based access, users are inspected prior to entry into the network. On the other hand, post-admission access ensures user authority after entry into the network.
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The network access control system is also classified on the basis of network distribution such as inline and out-of band network access systems. The out-of band network access systems are distributed on end-station (end point) which connect the user with network and resources. The in-line network access systems are centralized and have direct control over the data packets.
The key driving factors of network access control market are increasing malware attacks in enterprise network and raising adoption of data protection solutions. The others factors affecting growth of network access control market are emerging technologies such as internet of things, machine- to-machine networks, bring your own device, cloud-based services and increase in web-based applications.
The growing use of network access control in banking, financial services and insurance (BFSI) due to cybercrimes also contribute to growth of network access control market. In enterprise network access control frequently experience growth driven by new devices and new employees entering the network. Moreover, operating systems such as IOS, android and windows are improving compatibility with network access system contributing to network access control market growth. However, lack of scalability among network access control products is restraining the growth of network access control market.