Point-to-site client access to on-prem resources via ExpressRoute

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AaronLeech-6121 asked Jan 27, '22 AaronLeech-6121 commented Mar 21, '22

Point-to-site client access to on-prem resources via ExpressRoute

We have a solution we're working on. We have an ExpressRoute set up and working from our datacenter to the Azure Vnet. We also configured a VPN gateway for users to connect to, and they have access to the same Vnet.

We're trying to get users access to the on-prem resources via the ExpressRoute circuit when they're connected to the VPN gateway. I've searched for answers, but it's tough to find a definitive solution. Is it possible? Do we have to deploy a route server to accomplish this? Or maybe a virtual WAN?

We're just trying to determine if it's possible at all, and the most cost-effective way to do it if it is. Thank you for any help!

azure-vpn-gateway azure-expressroute

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Answer 1 · 2022-01-27T18:51:13.567Z

SaiKishor-MSFT answered Jan 27, '22 AaronLeech-6121 commented Mar 21, '22

@AaronLeech-6121 Thank you for reaching out to Microsoft Q&A.

Transit connectivity between P2S VPN and Azure Express Route is generally not supported. However, it can be done via vWAN as mentioned below in the docs:

Virtual WAN allows transit connectivity between VPN and ExpressRoute. This implies that VPN-connected sites or remote users can communicate with ExpressRoute-connected sites. There is also an implicit assumption that the Branch-to-branch flag is enabled and BGP is supported in VPN and ExpressRoute connections. This flag can be located in the Azure Virtual WAN settings in Azure portal. All route management is provided by the virtual hub router, which also enables transit connectivity between virtual networks.

Hope this helps. lease let us know if you have any further questions and we will be glad to assist you further. Thank you!

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AaronLeech-6121 · Jan 27 at 07:56 PM

That's what I was afraid of. We'll visit internally about how we want to proceed with this. Thank you for your time.

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