In computer networking, egress filtering is the practice of monitoring and potentially restricting the flow of information outbound from one network to another.

Egress filtering controls the traffic that is attempting to leave the network. Before an outbound connection is allowed, it has to pass the filter’s rules (i.e. policies).

Jul 23, 2025 · Egress Filtering is the term for filtering data packets as they leave your network. This is usually performed on an Intrusion Prevention System or firewall that monitors traffic, either inbound …

Apr 10, 2018 · In this post--a companion piece to Best Practices for Network Border Protection, which highlighted best practices for filtering inbound traffic -- I explore best practices and considerations for …

Jul 12, 2024 · Egress filtering is the technique of restricting & monitoring outgoing data by configuring the firewall before transmitting the data packets to another network.

Egress filtering is a critical component of a comprehensive network security strategy. By controlling outbound traffic, organizations can prevent sensitive information from leaving the network and block …

Egress filtering is a cybersecurity practice that involves monitoring and controlling the data traffic exiting a network. It is designed to prevent unauthorized or malicious outbound traffic from leaving the network.

Egress filtering offers numerous advantages for network security by monitoring and controlling outbound traffic. This practice is essential for preventing unauthorized data from leaving the network and …

What Is Egress Filtering? Egress filtering governs the flow of data intended for external destinations, ensuring that it is scrutinized and permitted based on predefined security policies.

This FAQ covers the benefits of performing egress filtering on the end points of your perimeter. Egress filtering is not only beneficial to your own network security, but to the rest of the Internet as well.