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NAC and 802.1x Solutions
802.1x and NAC are simple and effective security solutions used in networks. Through access control, no unauthorized device can access the network. However, standalone 802.1x solutions can be bypassed by malicious actors. Therefore, additional solutions must be implemented alongside 802.1x for access control. Today, the technology used for access control is NAC technology. Although some NAC solutions also utilize the 802.1x protocol, they overcome these vulnerabilities by employing features such as ARP poisoning mitigation and switch port VLAN assignment, thereby providing more secure access control.
The general purpose of using NAC technology is to grant network access only to users who comply with security requirements and are authorized to enter the network. However, modern NAC technologies do not stop there and come equipped with several new capabilities. Some of these features include:
- Provides end-user system security (e.g., Antivirus, HIPS [Host-Based Intrusion Prevention System]).
- Performs user authorization.
- Conducts security auditing of the network.
- Serves as a preventive measure against Zero-Day attacks.
- Provides authorization and access control on both a user-based and device-based level.
- Prevents issues originating from malicious users or devices.
- Blocks malware.
- Manages the network by monitoring information such as which devices exist on the network and who is connected.
- Provides authentication to control the access of guest users excluded from the primary network and isolates them from the network.
- NAC can create distinct security rules for every area within an organization. It brings risky and hazardous devices under control within the organization, preventing damage to the network.
In today's landscape, where BYOD and IoT technologies are proliferating and the need for access control has increased significantly, we at BeyazNet analyze the access control methods that organizations require and offer the most suitable NAC solutions tailored to their needs.