Sophos XG: Instructions for troubleshooting Viettel Network block domestic website

Overview

The article guides the troubleshooting of blocked domestic websites, only foreign websites can access when using the Internet connection of Viettel network

Posts are configured on Sophos XG devices

How to configure

• Go to Network -> Choose WAN interface -> Perform PPPoE dial-up configure or set a static IP for WAN line
• Here I do a PPPoE dial
• Enter your username and password

• Go to Advanced Settings -> Set the MTU parameter to 1492 so that the Viettel network does not block domestic websites

• Click Save to PPPoE dial -> Check network activities