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rawzace avatar image
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rawzace asked rawzace commented

Routing Problem - Azure to Onpremise

146311-capture.pngAll 3 VM has IIS installed.

I have attached the sample network diagram.
I have Site to Site VPN setup between VNet1 and VnetB.
VM1 is able to access the VM2 at VNetB. VM2 is also able to access the VM1.

I have peered VnetB and VnetC with Traffic to remote virtual network- Enabled, Traffic forwarded from remote virtual network- Enabled.
But i am not able to reach VM3 from VM1 or VM1 to VM3.

I have added the route to both 10.2.0.0/16 and 10.3.0.0/16 on VM1 but still not working.

The VM3 also doesnot have any route to 10.4.0.0/16 on this routes if i check the routes on its NIC.


azure-vpn-gatewayazure-expressroute
capture.png (65.8 KiB)
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msrini-MSFT avatar image
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msrini-MSFT answered rawzace commented

@rawzace ,

Make sure the blow items are in place:

  1. VNET A and VNET B is Site to Site not VNET to VNET connection. When you create Site to Site connection, you will have Local Network Gateway deployed in each VNET and you will add address spaces. In VNET A's Local Network Gateway, you will need to add VNET B, C's address space and in the VNETB's LNG you need to Add VNET A's Address space.

  2. Make sure that the Gateway transit is enabled on VNET B and remote gateway is enabled on VNET C.

If these are in place, this scenario should work. If not let me know.

Regards,
Karthik Srinivas



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Thank you for your help. The tea no 1 fixed my issues. The address space was incorrectly entred in my case.

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rawzace avatar image
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rawzace answered msrini-MSFT commented

Hello Srinivas,

Thank you for your reply. I have satisfied both of the items you mentioned above but its still not working.

I can provide the screenshots to you if required. Any other advise or help is greatly appreciated.

Thanks,
Rajesh Khanal

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Drop an email to msrini@microsoft.com, with your subscription ID. I can help.

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