Connectivity Issue b/t On-Prem & Azure VNET via S2S VPN

Kalel 60 Reputation points
2024-12-13T17:01:53.1966667+00:00

We are having bit of an issue with connectivity from On-Prem to Azure VNet as we are working to standup a new infrastructure in Azure.

·         2 Vnets currently configured (Vnet1 & Vnet2)

·         Vnet Peering is configured between the Vnets

·         Connectivity between servers between VNets works

·         Site-to-Site VPN Tunnel configured b/t Azure and On-Prem (status is connected)

·         On-Prem systems can successfully connect to Vnet 1

·         On-Prem systems are unable to connect to Vnet 2

·         I’m wondering if it has something to do with the VNET peering configuration

Azure Vnet 1 Peering Issue

Azure Vnet 2 Peering Issue

TCL Azure Troubleshoot Peering

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.
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Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
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  1. Andreas Baumgarten 113.6K Reputation points MVP
    2024-12-13T17:32:48.0966667+00:00

    Hi @Kalel ,

    did you set the routes correctly?

    Routes on-premises to vNet1 and vNet2 (using VPN)?

    Routes from vNet2 to on-premises (using a routing instance in vNet1)?


    (If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

    Regards

    Andreas Baumgarten


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