When configuring ASR replication between Azure sites, what should be done to maintain network connectivity?

To maintain network connectivity when configuring ASR (Azure Site Recovery) replication between Azure sites, it is essential to use service tags or URLs to control network connectivity. Service tags represent a group of IP address prefixes for Azure services, which simplifies the management of network security rules and allows for seamless communication between resources in Azure. By employing service tags, you ensure that necessary Azure services can communicate effectively without the need for manual IP address configuration, which can be cumbersome and error-prone given the dynamic nature of cloud environments.

Using service tags means that as Microsoft updates their infrastructure or changes IP addresses, you do not have to adjust your network security settings manually. This approach reduces the risk of connectivity issues that can arise from static configurations. Furthermore, service tags can enhance security by allowing you to enable access only for the necessary services while keeping other connections restricted.

In contrast, implementing a manual IP configuration may lead to challenges with connectivity, especially if IP addresses change or if there are multiple resources that need different access configurations. Disabling all service tags is counterproductive, as it would prevent any Azure services from communicating with each other. Similarly, restricting connectivity to only on-premises resources would negate the purpose of ASR replication, which relies on connectivity between Azure sites to effectively