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Help Center/ Elastic Load Balance/ FAQs/ Load Balancers/ Why Multiple IP Addresses Are Required When I Create or Enable a Load Balancer?

Why Multiple IP Addresses Are Required When I Create or Enable a Load Balancer?

Updated on 2023-03-30 GMT+08:00

These IP addresses are used by underlying resources.

Generally, 2 IP addresses are required for creating a load balancer in a single AZ, and 6 IP addresses are required for creating a load balancer with IP as a backend enabled. If you create a load balancer in multiple AZs, more IP addresses will be required. There is an algorithm to determine how many IP addresses are required.

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