> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aviatrix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Default Distributed Cloud Firewall Rules

> Distributed Cloud Firewall Greenfield Rule

There are two default Distributed Cloud Firewall (DCF) Rules:

* Greenfield Rule: prevents traffic from being dropped before you start
  configuring the rest of your rules. By default (if you selected the
  recommended *Permit* action for the rule), the rule has the following
  attributes:
  * Source/Destination SmartGroups: Anywhere (0.0.0.0/0)
  * Protocol: Any
  * Action: Permit
  * Logging: On

After you create additional rules you can move the Greenfield Rule where needed
in your rule priority list. You can edit or delete the rule later, if desired.

* DefaultDenyAll Rule: blocks traffic to any CIDR covered in Distributed Cloud
  Firewall rules. You cannot edit or delete this rule.


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