VPN Log enabled but no logs are generated

Question

Hi y'all,

Recently i enabled this new feature in one of our VPN (for both Tunnels), using delagated admin account, we already create the log group but even when the tunnel its UP or when its failed for any OnPrem issue, doesnt record any activity:

https://aws.amazon.com/es/about-aws/whats-new/2022/08/aws-site-vpn-connection-logs-amazon-cloudwatch/

This feature just record logs for any special condition in both tunnels (Static or BGP protocol used) ? or i miss something ?

Thanks and regards in advance,

Accepted Answer

For this issue its need to create a Support case asking for Update software version for each Tunnel Endpoints, seems its not automatically update after saved without change in tunnel Options workaorund.

Answer

Hello,

Did you follow the steps outlined [here](https://docs.aws.amazon.com/vpn/latest/s2svpn/monitoring-logs.html#publish-cw-logs); specifically the IAM section?

Answer

Indeed, i have same policy attached to my user (admin one), and after that i refresh the endpoint as you mentioned but i doesnt see any new log created yet. btw, the only log created was  this:

"Permissions are set correctly to allow AWS CloudWatch Logs to write into your logs while creating a subscription."

but anyone realted to the endpoints

Answer

Facing the same issue, Please let me know if you got to resolve this ?

Answer

Hello,

The IAM permissions should have the below permissions, despite the admin access. Can you double check on the same ?

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "logs:CreateLogDelivery",
        "logs:GetLogDelivery",
        "logs:UpdateLogDelivery",
        "logs:DeleteLogDelivery",
        "logs:ListLogDeliveries"
      ],
      "Resource": [
        "*"
      ],
      "Effect": "Allow",
      "Sid": "S2SVPNLogging"
    },
    {
      "Sid": "S2SVPNLoggingCWL",
      "Action": [
        "logs:PutResourcePolicy",
        "logs:DescribeResourcePolicies",
        "logs:DescribeLogGroups"
      ],
      "Resource": [
        "CloudWatch Logs log group ARN"
      ],
      "Effect": "Allow"
    }
  ]
}

More Importantly: Please note that the VPN endpoints need to be upgraded to enable the feature and be on the latest software version. Please use Modify VPN connections on the console and click save without changing anything on the tunnel, so that the software can be updated for the feature to be enabled. please note that doing the same, will hamper VPN tunnel connectivity for the time the software is being updated, hence do the same action on the tunnels one by one.

VPN Log enabled but no logs are generated

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