[GH-ISSUE #3407] Add Support for Explicit Deny Policies & Stateful Firewall #7284

New Issue

saavagebueno · 2026-08-05T01:12:20-04:00

saavagebueno commented

2026-08-05 01:12:20 -04:00

Originally created by @kareemschultz on GitHub (Feb 28, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/3407

Hey NetBird Team,

I appreciate the work you're doing to simplify secure networking. While setting up access control, I realized that NetBird currently supports only allow policies but lacks a way to explicitly deny traffic.

Right now, if I need to block a specific IP (e.g., 10.4.0.36) while allowing 10.4.0.0/24, I have to create complex allow lists that manually exclude that IP. This is inefficient and difficult to manage at scale.

Feature Request:
Support Explicit Deny Policies

Ability to create policies that block traffic to/from specific IPs, subnets, or groups.
Would simplify security management instead of relying solely on allow rules.
Stateful Firewall Capabilities (I heard this is planned 👀)

Ability to filter and control inbound/outbound traffic dynamically.
Example: Restrict access based on connection state (e.g., allow established connections but block new ones).
This would make NetBird much more powerful for fine-grained security controls.

Originally created by @kareemschultz on GitHub (Feb 28, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/3407 Hey NetBird Team, I appreciate the work you're doing to simplify secure networking. While setting up access control, I realized that NetBird currently supports only allow policies but lacks a way to explicitly deny traffic. Right now, if I need to block a specific IP (e.g., 10.4.0.36) while allowing 10.4.0.0/24, I have to create complex allow lists that manually exclude that IP. This is inefficient and difficult to manage at scale. Feature Request: Support Explicit Deny Policies Ability to create policies that block traffic to/from specific IPs, subnets, or groups. Would simplify security management instead of relying solely on allow rules. Stateful Firewall Capabilities (I heard this is planned 👀) Ability to filter and control inbound/outbound traffic dynamically. Example: Restrict access based on connection state (e.g., allow established connections but block new ones). This would make NetBird much more powerful for fine-grained security controls.

saavagebueno added the feature-request label 2026-08-05 01:12:20 -04:00

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dependabot/go_modules/wireguard-dbd6b95108

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Reference: DYNR/netbird#7284