QNAP Virtual Machine and OpenWrt+Passwall Configuration Issue

This article discusses a configuration issue encountered when using a QNAP virtual machine running OpenWrt and passwall as a side router. The setup was designed to automatically redirect traffic to a domestic server for certain services and allow international access to the internet. However, when accessing the container, it was observed that curl commands to domestic websites would timeout, while accessing Google worked normally.

Steps taken to troubleshoot the issue include:

1. Installing OpenWrt and passwall on a QNAP virtual machine, setting up automatic traffic redirection and enabling international access.
2. Configuring the QNAP gateway and DNS server to route through the virtual machine.
3. Accessing the internet from the QNAP without any issues, but experiencing timeouts when accessing domestic websites from the container.
4. Changing the QNAP gateway to a local network's OpenWrt+passwall router, allowing normal internet access.

The author is seeking clarification on why this issue occurs and whether a solution can be found to eliminate the need for an additional OpenWrt+passwall device.