Why do IPsec VPN connection fail when using 0.0.0.0 as the source gateway in a non-server role?

Zyxel_James

Question: Why do outgoing IPsec VPN connections fail when using 0.0.0.0 as the source gateway in a non-server role, and how can this be resolved?
Answer:
When configuring an IPsec VPN tunnel and using 0.0.0.0 as the source gateway, particularly when the tunnel is not in a server role, you may encounter issues where outgoing VPN connections fail or use an false SNAT IP. This behavior is an intended design limitation rather than a bug.