Description: A VLAN firewall is a firewall that operates at the VLAN level to control traffic between different VLANs. This type of firewall allows networks to be segmented into multiple virtual subnets, enhancing security and traffic management. By implementing a VLAN firewall, specific security policies can be established for each VLAN, allowing or blocking traffic according to the organization’s needs. This is particularly useful in environments where different departments may require varying levels of access to shared resources. Additionally, a VLAN firewall can help prevent internal attacks by limiting communication between VLANs, ensuring that only authorized traffic can cross the boundaries of each network segment. Key features of a VLAN firewall include the ability to inspect and filter packets, the implementation of access rules based on IP addresses, and the capability to log and monitor network traffic. In summary, a VLAN firewall is an essential tool for modern network security, providing granular control over traffic and enhancing protection against cyber threats.