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Application Gateway Routing of Requests

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i90runner1
i90runner1

Application Gateway Routing of Requests

(https://docs.microsoft.com/en-us/azure/application-gateway/how-application-gateway-works )

  • Both internet-facing and internal application gateways route requests to backend servers by using private IP addresses. This action happens when your backend pool resource contains a private IP address, VM NIC configuration, or an internally resolvable address. If the backend pool:

  • Is a public endpoint, the application gateway uses its frontend public IP to reach the server. If there isn't a frontend public IP address, one is assigned for the outbound external connectivity.
  • Contains an internally resolvable FQDN or a private IP address, the application gateway routes the request to the backend server by using its instance private IP addresses.
  • Contains an external endpoint or an externally resolvable FQDN, the application gateway routes the request to the backend server by using its frontend public IP address. The DNS resolution is based on a private DNS zone or custom DNS server, if configured, or it uses the default Azure-provided DNS. If there isn't a frontend public IP address, one is assigned for the outbound external connectivity.

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