Azure VPN and Routing to Onprem Network

rr-4098 1,276 Reputation points
2022-10-15T16:56:21.707+00:00

Right now we have a very simple hybrid setup for Azure. We are using Azure VPN to connect to our onprem network. All Azure VM's can ping onprem servers, but onprem cannot reach Azure ping, RDP etc.... In Azure do I need to create a UDR with the destination of Virtual Gateway Network so traffic knows how to get back onprem? Please note, we only have one vNet.

Azure Virtual Network
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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Accepted answer
  1. msrini-MSFT 9,261 Reputation points Microsoft Employee
    2022-10-15T18:21:44.223+00:00

    Hi,

    If you are able to reach On-Prem via Azure VM, that means there are no IP connectivity issue. It might be with the Windows Firewall or NSG or your On-Premises firewall which might be blocking the ICMP packets. Can you try to perform any Layer 4 connectivity test like telnet on RDP or SSH ports ?

    Regards,
    Karthik Srinivas


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