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

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Zyxel_James
Zyxel_James Posts: 839 image  Zyxel Employee
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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.