no-unrestricted-route-to-igw - AWS Config
AWS CloudFormation template

no-unrestricted-route-to-igw

Checks if there are public routes in the route table to an Internet Gateway (IGW). The rule is NON_COMPLIANT if a route to an IGW has a destination CIDR block of '0.0.0.0/0' or '::/0' or if a destination CIDR block does not match the rule parameter.

Identifier: NO_UNRESTRICTED_ROUTE_TO_IGW

Trigger type: Configuration changes

AWS Region: All supported AWS regions except China (Beijing), Asia Pacific (Jakarta), Middle East (UAE), Asia Pacific (Osaka), AWS GovCloud (US-East), AWS GovCloud (US-West), Europe (Spain), China (Ningxia), Europe (Zurich) Region

Parameters:

routeTableIds (Optional)
Type: CSV

Comma-separated list of route table IDs that can have routes to an Internet Gateway with a destination CIDR block of '0.0.0.0/0' or '::/0'.

AWS CloudFormation template

To create AWS Config managed rules with AWS CloudFormation templates, see Creating AWS Config Managed Rules With AWS CloudFormation Templates.