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Delete a policy table entry in AWS Transit Gateway - Amazon VPC

Delete a policy table entry in AWS Transit Gateway

Delete a customer-managed entry from a transit gateway policy table. System-managed entries cannot be deleted.

Important

If you delete all customer-managed entries and there are no applicable system-managed entries, the transit gateway drops all packets arriving on attachments associated with that table. Add at least one rule or re-associate the attachment with a route table to restore traffic forwarding.

To delete a policy table entry using the console

  1. Open the Amazon VPC console at https://console.aws.amazon.com/vpc/.

  2. In the navigation pane, under Transit Gateways, choose Transit Gateway Policy Tables.

  3. In Transit Gateway Policy Tables, select the policy table.

  4. Choose the Entries tab.

  5. Select the customer-managed entry you want to delete. System entries cannot be deleted.

  6. Choose Delete.

  7. In the confirmation dialog, review the entry details (rule number, target route table, source CIDR block, source port, destination CIDR block, destination port, protocol). Acknowledge the message Once deleted, you'll need to create a new entry with the same attributes to restore it and choose Delete.

A success banner appears: Policy table entry with rule number {ruleNumber} was successfully deleted.

To delete a policy table entry using the AWS CLI

Use the delete-transit-gateway-policy-table-entry command. The deleted entry is returned in the response with "State": "deleted".

aws ec2 delete-transit-gateway-policy-table-entry \
    --transit-gateway-policy-table-id tgw-ptb-0ca78a549EXAMPLE \
    --policy-rule-number 100
{
    "TransitGatewayPolicyTableEntry": {
        "PolicyRuleNumber": "100",
        "PolicyRule": {
            "SourceCidrBlock": "10.100.0.0/16",
            "SourcePortRange": "*",
            "DestinationCidrBlock": "*",
            "DestinationPortRange": "443",
            "Protocol": "6"
        },
        "TargetRouteTableId": "tgw-rtb-0a823edbdeEXAMPLE",
        "State": "deleted"
    }
}
Note

You cannot delete a transit gateway route table that is referenced as a target by any policy table entry. Use GetTransitGatewayPolicyTableEntries with a target-route-table-id filter to identify referencing entries, then update or delete them before retrying the route table deletion. Unlike route entries (which are black-holed when a target attachment is deleted), policy table entries are not automatically cleaned up. They must be explicitly removed.