Disable RDP Port 3389

@DenverDTS , I have done a repro of this setup in my lab. All you need to do is,

Step 1:

Ignore the warning and save the configuration.

Step 2:

Now, to allow AzureLoadBalancer to VirtualNetwork or to Allow VirtualNetwork to VirtualNetwork you need to create an inbound rule as mentioned below,

The Virtual Network tag includes the Virtual IP of the host, an allow effectively grants access for AzureLoadBalancer probes.

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@suvasara-MSFT

Created the rule above, but still having the same issue.

Thank you.

@DenverDTS , that is expected behavior on denying RDP port. Bastion makes use of the 3389 default RDP port. As your question is around asking for an assistance on setting the priority of the "AllowAzureLoadBalancerInBound", provided the solution accordingly.

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Please do not forget to "Accept the answer" wherever the information provided helps you to help others in the community.

@DenverDTS ,

If you think your question has been answered, click "Mark as Answer" if just helped click "Vote as helpful". This can be beneficial to other community members reading this forum thread.

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Best regards
Subhash