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nitrox2000's avatar
nitrox2000
Copper Contributor
Mar 13, 2026

Azure VM Persistent Route Setup

Hi I hope to get some advice on a routing issue from Azure to an on-premises system. A little background first, please bear with me: We have an on-premises VM that connects to an isolated Thirdpar...
Kidd_Ip's avatar
Kidd_Ip
MVP
Mar 14, 2026

Persistent routes cannot be configured in Azure VMs in the same way as on-premises. In Azure, routing is managed at the network level through User Defined Routes (UDRs) and VPN Gateway configuration, rather than by static routes inside the virtual machine. The gateway address you specified (10.100.10.190) is not directly accessible from the Azure VM, which is why the persistent routes fail. To achieve the required connectivity, you must configure Azure route tables (UDRs) and ensure that the VPN Gateway advertises the appropriate on-premises subnets.

 

Tutorial - Create S2S VPN connection between on-premises network and Azure virtual network: Azure portal - Azure VPN Gateway | Microsoft Learn

 

https://learn.microsoft.com/en-us/azure/vpn-gateway/