🔌 Public Virtual Interface (Public VIF)
Purpose:
Establishes a connection from your on-premises network to AWS public services using public IP addresses.
Key Features:
- Access to Public AWS Services: Connects to services like Amazon S3, DynamoDB, and EC2 instances with public IPs.
- Global Reach: Provides access to all AWS public IP addresses globally, regardless of the AWS Region.
- BGP Prefix Advertisement: Requires you to advertise at least one public IP prefix using BGP.
- IP Address Requirements: You must own the public IP addresses used for BGP peering.
- Not for Internet Access: Does not provide general internet access; it’s limited to AWS public services.Repost+3Repost+3AWS Documentation+3AWS Documentation+2Repost+2AWS Documentation+2
*Use Cases:
- Connecting to AWS services that require public IP addresses.
- Accessing AWS services across multiple Regions.
- Connecting to services like Amazon Connect or Amazon S3.RepostAWS Documentation
🛡️ Private Virtual Interface (Private VIF)
Purpose:
Establishes a secure, private connection from your on-premises network to your Amazon VPC using private IP addresses.
Key Features:
- Access to VPC Resources: Connects to EC2 instances, RDS databases, and other resources within your VPC using private IPs.
- Direct Connect Gateway Integration: Allows connection to multiple VPCs in different Regions via a Direct Connect Gateway.
- BGP Prefix Advertisement: AWS advertises the VPC CIDR block over BGP.
- No Public IPs Required: Does not require the use of public IP addresses.Repost+1Repost+1
Use Cases:
- Establishing a hybrid cloud setup with private connectivity.
- Accessing AWS resources within a VPC securely.
- Connecting to VPCs in different Regions via a Direct Connect Gateway.