Network diagrams
The following are the network diagrams for AWS Elastic Disaster Recovery. :
General Architecture - On-Prem to AWS
The following diagram shows the general architecture of DRS protecting Source Servers located in an on-premises environment.
![AWS Elastic Disaster Recovery architecture showing data replication from on-premises to AWS Cloud.](/images/drs/latest/userguide/images/drs-general-arc.png)
On-Prem to AWS
The following diagram shows the network architecture of DRS protecting Source Servers located in an on-premises environment.
![Network architecture diagram showing on-premises servers replicating to AWS Cloud using DRS, EC2, and S3 services.](/images/drs/latest/userguide/images/drs-network-arc.png)
On-Prem to AWS via VPN
The following diagram shows the network architecture of DRS protecting Source Servers located in an on-premises environment. Communication between the on-premise environment and DRS is performed through a VPN connection.
![Network architecture diagram showing AWS DRS protecting on-premises servers via VPN connection.](/images/drs/latest/userguide/images/drs-vpn-connection-communication.png)
On-Prem to Outposts
The following diagram shows the network architecture of DRS protecting Source Servers located in an on-premises environment. The Staging and Recovery are both located on AWS Outposts. Find out more about protecting Source Servers using Outposts.
![AWS Elastic Disaster Recovery architecture using AWS Outposts for staging and recovery.](/images/drs/latest/userguide/images/drs-networkrequirements-outpost1.png)
AWS to Outposts
The following diagram shows the network architecture of DRS protecting Source Servers located in AWS. The Staging and Recovery are both located on AWS Outposts. Find out more about protecting Source Servers using Outposts.
![AWS Elastic Disaster Recovery architecture showing replication between main and recovery data centers using AWS Outposts.](/images/drs/latest/userguide/images/drs-networkrequirements-outpost2.png)
AWS Failback to On-Prem
The following diagram shows the network architecture of DRS performing Failback to an on-premise environment after performing a Recovery into AWS.
![AWS DRS failback replication architecture showing AWS Cloud, Recovery Subnet, and data center components.](/images/drs/latest/userguide/images/drs-failback-arc.png)