gateway transit and remote gateways in azure

eg1995 1,126 Reputation points
2021-09-23T09:59:53.007+00:00

dears,

a site to site vpn connection has been made between on premises and one azure vnet vnet1.
and from vnet1 i have a peering connection onto a new azure vnet vnet2.

if i want to achieve communication between on premises to vnet 2 and vice versa, i saw that i can enable gateway transit and remote gateways.
my question would be this is will be enough to achieve my goal? or do i have to create an nva in my vnet1?? or i can use the on prem vpn gateway to create the routes??

can u advise on that point please

thank you

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Azure VPN Gateway
An Azure service that enables the connection of on-premises networks to Azure through site-to-site virtual private networks.
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An Azure network security service that is used to protect Azure Virtual Network resources.
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An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
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  1. SaiKishor-MSFT 17,181 Reputation points
    2021-09-24T08:49:38.837+00:00

    @eg1995 Thank you for reaching out to Microsoft Q&A. I understand that you want to setup connectivity between your on-premise and your secondary vnet-2. Since you already have a connection from vnet-1 to your on-premise, you will be able to utilize this connection and setup connectivity between vnet-2 and on-premise via Gateway Transit as you mentioned (Vnet-1 will act as Hub and Vnet-2 will be the Spoke). You do not need any additional connections or setup for this.

    Here are more details Gateway Transit given in this document- Configure VPN gateway transit for virtual network peering Hope this helps.

    Please let us know if you have any further questions and we will be glad to assist you further. Thank you!

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  1. eg1995 1,126 Reputation points
    2021-09-26T05:09:05.637+00:00

    yes i have already checked the documentation. I am just having some doubts because if someone from on premises connects to vnet 2, how would the vpn gateway knows to route the connection to vnet 2 instead of vnet 1 if there are no routes created?