VPN gateway transit for virtual network peering

DavidSudjiman 21 Reputation points
2022-01-24T07:50:35.75+00:00

Hi,

I have been trying to lab the below and following this article (https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-peering-gateway-transit) but my spoke1 and spoke2 still not able to see each other route.

I've checked the following:

  • Peerings are created after VNET GW is deployed.
  • Checked the Hub-to-Spoke1 and Hub-to-Spoke2 in VNet Hub "Use this virtual network's gateway or Route Server" (See pic below). Uncheck and check this didn't fix the issue.
  • Check the Spoke1-to-Hub and Spoke2-to-Hub in the VNet Spoke "Use the remote virtual network's gateway or Route Server" (See pic below). Uncheck and check this didn't fix the issue.
  • Peerings all are showing Connected and Fully Sync.
  • Hub-Linux has both spoke1 and spoke2 routes but not spoke1 and spoke2.
  • I have the Azure CLI script if needed. and creating this via script or web doesn't make any different.

Is there something that I've missed the step? much appreciated the help and time in advance.

Sincerely,
David Sudjiman

167698-image.png

167706-image.png

167742-image.png

167707-image.png

167699-image.png

167679-image.png

167717-image.png

167718-image.png

167751-image.png

167680-image.png

Azure VPN Gateway
Azure VPN Gateway
An Azure service that enables the connection of on-premises networks to Azure through site-to-site virtual private networks.
1,370 questions
0 comments No comments
{count} votes

Accepted answer
  1. Alan Kinane 16,786 Reputation points MVP
    2022-01-24T10:37:55.767+00:00

    Hi David, you will need to add user defined routes to your spoke VNETs in order to inform those VNETs how to route the traffic to the other spoke VNETS.

    https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-manage-peering#requirements-and-constraints

    167863-screenshot-2022-01-24-103659.jpg

    Here's some more details on how to set this up:

    https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-udr-overview#custom-routes


1 additional answer

Sort by: Most helpful
  1. DavidSudjiman 21 Reputation points
    2022-03-02T23:01:18.777+00:00
    0 comments No comments