How to verify communication matrix established between 2 resource groups?

Question

I have the resource group names and subnet IP range. I would like to verify if the communication is happening successfully between the 2 RGs. I dont have any other details like port etc.

Answer 1

@Joshi, Nagaratna Shrikant ,

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

I am afraid you have to provide more details than that.

Please note that a "Resource Group" is a logical grouping of resources.

• See What is a resource group
• It does not denote an actual resource in Azure and just a grouping of meta data.
• So, your question of "Communication between 2 resource groups" is not the technically correct and is not a valid question.

If you had two virtual Networks in the two Resource Groups,

• You can check if they have communication between each other by checking if they have a Virtual network peering between them
• If they do, this indicates the two VNETs can talk to each other and all resources across the VNETs can talk to each other

If you had two VMs in the two Resource Groups and confirmed they are in VNETs that are peered,

• You can use IP flow verify overview

or

• You can use NSG diagnostics

Kindly let us know if this helps or you need further assistance on this issue.

Thanks,

Kapil

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