To ensure replication traffic stays within Azure boundaries when configuring ASR, what should you consider?

When configuring Azure Site Recovery (ASR), using a network service endpoint in the virtual network is important for ensuring that replication traffic remains within Azure boundaries. Network service endpoints allow you to secure Azure service resources to your virtual network, enabling private connections for services like Azure Storage or Azure SQL Database. By using these endpoints, you can keep the traffic between your ASR components within the Azure network, which enhances both security and performance.

Selecting a public IP address for outbound traffic would open up your data to the public internet, which defeats the purpose of keeping traffic within Azure boundaries. Disabling Network Security Groups (NSGs) entirely would remove important security controls that help protect your resources within the network. Lastly, while establishing VPN connections can create secure pathways for traffic, they are not specifically designed to control service traffic and can actually introduce additional overhead and complexity when trying to ensure traffic stays within Azure. Thus, utilizing network service endpoints is the most efficient and secure method to meet the requirements for ASR replication traffic.