Trust Domain
Use this screen to view a list of public IP addresses which are allowed to access the Zyxel Device through the services configured in the Maintenance > Remote Management > MGMT Services screen. Click Maintenance > Remote Management > Trust Domain to open the following screen.
*Enter the IP address of the management station permitted to access the local management services. If specific services from the trusted hosts are allowed access but the trust domain list is empty, all public IP addresses can access the Zyxel Device from the WAN using the specified services.
Maintenance > Remote Management > Trust Domain
The following table describes the fields in this screen.
Maintenance > Remote Management > Trust Domain 
Label
Description
Add Trust Domain
Click this to add a trusted host IP address.
IP Address
This field shows a trusted host IP address.
Delete
Click the Delete icon to remove the trusted host IP address.
Add Trust Domain
Use this screen to add a public IP addresses or a complete domain name of a device which is allowed to access the Zyxel Device. Enter the IP address of the management station permitted to access the local management services. If specific services from the trusted-hosts are allowed access but the trust domain list is empty, all public IP addresses can access the Zyxel Device from the WAN using the specified services.
Click the Add Trust Domain button in the Maintenance > Remote Management > Trust Domain screen to open the following screen.
Maintenance > Remote Management > Trust Domain > Add Trust Domain
The following table describes the fields in this screen.
Maintenance > Remote Management > Trust Domain > Add Trust Domain
label
description
IP Address
Enter a public IPv4/IPv6 IP address which is allowed to access the service on the Zyxel Device from the WAN.
OK
Click OK to save your changes back to the Zyxel Device.
Cancel
Click Cancel to restore your previously saved settings.