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Overview

Juggernaut Security and Firewall supports blocking traffic based on Autonomous System Numbers (ASN). This functionality allows administrators to deny all IP subnets assigned to a specific organization or network provider.

Lookup an ASN

1. Navigate to Juggernaut Security and Firewall > Tools > Network Information > ASN.
2. Enter a target IP address in the search field and click Search.
3. The corresponding ASN will be displayed in the first column of the results table.

Block an ASN

1. Navigate to Juggernaut Security and Firewall > Settings > Country Settings.
2. In the Deny countries to all ports field, enter the target ASN prefixed with AS. For example:

   AS8075

   Press the spacebar after entering each value to register it.
3. Click Update to apply the configuration changes.
4. Click Save Page & Restart to restart the Login Failure Daemon (LFD). This action triggers the daemon to download and block all IP networks associated with the specified ASN.
5. Monitor the process by navigating to Logs > LFD log. The log will display entries confirming the network downloads and firewall rule updates.

Troubleshooting

• Verify that the correct format (AS followed by numeric values) is used in the configuration field.
• Review Logs > LFD log for errors related to network downloads or daemon restart failures.