Azure Virtual Gateway

Question

Hello,

I am setting an Azure infra on which some of the servers are located on-prem, some of the servers needs to be configured in central us and some in west us.
Two connections needs to be established for this -

1. Central us to on-prem.
2. Central us to west us

For this i first configured a azure virtual gateway between central us and on-prem and configured a site to site connection. This connection if fine and after this i can connect to my on-prem resources.

then i have built a azure virtual gateway in west us and configured a vnet to vnet connection between central us and west us using the gateway but this connection is not working it always shows not connected.

What can be wrong here ? Experts please help.

Thanks.

Answer 1

@NM Please confirm the following:

1- The Gateways are configured using Dynamic routing and not Static routing as static routing is not supported for VNET-VNET connectivity.

2- In order for the Vnet to Vnet to be established and "connected", you need to add connections on both VPN gateways. Please also refer to similar Q&A article for more details- https://learn.microsoft.com/en-us/answers/questions/52237/vnet-to-vnet-connection-using-networkgw.html

3- Make sure that you are not hitting any limits for number of VPNs.

4- Please check the address prefixes on both the VNets to make sure there is no overlapping of address spaces between the two VNets.

You can also diagnose VPN connectivity issues with Powershell now. Please refer to document for more details.

If you have any further questions/concerns, please do let us know and we will be glad to assist you further. Thank you!

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