How do I configure ZyWALL with NAT for internal servers?
Generally, without IPSec, to configure an internal server for outside access, we need to configure the server private IP and its service port in NAT Server Table. However, if both NAT and IPSec is enabled in ZyWALL, the edit of the table is necessary only if the connection is a non-secure connections. For secure connections, none NAT server settings are required since private IP is reachable in the VPN case.