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We have Azure Virtual Wan Hub and Spoke Design with couple of Vnet Peering on the same Region.

I have 3 Servers and the 3 of them are on different Vnet's but all connected to the Hub (Virtual Wan).

Is the only way to load balance the 3 servers with one VIP is to have a Network Virtual Appliance (NVA) like F5 to do it? I can not find anywhere if the internal load balance would be able to do that, and looks like it does not.

Nancy
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Draven85
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2 Answers2

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After my validation, it's not possible to use Azure load balancer to distribute network traffic to the 3 Servers in the same region but on different VNets because All IP configurations in the same backend pool must be on the same virtual network. A single backend endpoint pool only can contain resources from one virtual network.

In Backend pool management, there are two ways of configuring a backend pool:

  • Network Interface Card (NIC)
  • Combination of IP address and Virtual Network (VNET) Resource ID
Nancy
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Thanks Nancy, I came with the same outcome. I guess the only way when use hub and spoke (Virtual Wan) would be using F5 (NVA).

Hope it helps someone else out there.

Draven85
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