If you are using EC2 instances within the AWS public cloud, configure these instances to reside in the same VPC. When configuring the software, use private IP addresses to connect to these instances.
If you are using EC2 instances to connect from the AWS public cloud to an on-premises Teradata system, use public IP addresses to connect to the on-premises Teradata system when configuring the software.
You only need to use public IP addresses if you launch an instance using a public VLAN. If you launch an instance using a private VLAN, the instances have private IPs and a VPC connection is required for SSH access.
- Teradata Data Mover
- Teradata Ecosystem Manager
- Teradata REST Services
- Teradata Viewpoint
For example, use Teradata Database private IP addresses in Data Mover job XML and Data Mover portlets if all AWS instances reside in the same VPC. In Data Mover portlets, use the private IP address of the Data Mover instance to connect to a Teradata Database system. If source and target systems reside outside AWS, such as an on-premises system, use the public IP addresses instead.