What is a Multi-Homed Firewall?

A Multi-Homed Firewall is defined as a firewall that connects multiple networks. This type of firewall has at least two network interfaces, enabling it to manage traffic across different network segments. The primary function of a Multi-Homed Firewall is to control and filter traffic between these segments, providing security and ensuring that data can move securely between various networks, such as a public-facing network and a private internal network.

In environments where different security requirements exist, having a Multi-Homed Firewall helps to enforce policies that are appropriate for each network segment. Since it operates on multiple interfaces, it can effectively manage inbound and outbound traffic from multiple sources, which enhances overall security posture by isolating networks and controlling access.

The other descriptions do not accurately represent the characteristics of a Multi-Homed Firewall. The correct designation reflects its ability to connect and secure multiple networks, highlighting its fundamental role in complex network architectures.