Help Center/ Elastic Load Balance/ FAQs/ ELB Functionality/ Can a Backend Server Access Its Load Balancer?
Updated on 2024-09-24 GMT+08:00
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Can a Backend Server Access Its Load Balancer?

Generally, you are not advised to use a server as both a backend server and a client.

If you have special requirements, select a solution with caution.

  • Public network communication: If a backend server has a public IP address, it can access the public IP address of the associated load balancer.
  • Private network communication:
    • The backend server can access the associated load balancer at Layer 7.
    • If Transfer Client IP Address is enabled for Layer 4 listeners, the backend server cannot serve as a client and access the associated load balancer.
    • If Transfer Client IP Address is not enabled for Layer 4 listeners, the backend server can serve as a client and access the associated load balancer.

      If IP as a Backend is enabled for the load balancer, Transfer Client IP Address settings will not be applied. In this case, the backend server can serve as a client and access the associated load balancer.

Parent topic: ELB Functionality