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MPBagger
Copper Contributor
May 29, 2021

Site-to-Site VPN using L2TP/IPSec

Hi

I have to establish a connection from Azure to a site and the VPN is using a L2TP/IPSec connection. Is it possible to do this I Azure? Until now I have only found setups using IKE (v1 or v2).

1 Reply

  • Azure does not support L2TP/IPSec for Site-to-Site VPN connections. Azure VPN Gateway only supports IPsec/IKE (IKEv1 and IKEv2) protocols for S2S tunnels.

     

    You may consider:

     

    1. Switch the remote site to IPsec/IKE
    •    If you control the remote VPN device, configure it to use IPsec/IKEv2.
    •    Follow this: About VPN devices for connections - Azure VPN Gateway | Microsoft Learn
    2. Use a third-party NVA (Network Virtual Appliance)
    •    Deploy a VM-based VPN appliance in Azure that supports L2TP/IPSec.
    •    These can act as L2TP endpoints and bridge traffic to your Azure VNet.
    3. Use Point-to-Site VPN with L2TP/IPSec (limited)
    •    Azure supports L2TP/IPSec for Point-to-Site (P2S) VPNs, but only for Windows clients.
    •    This is not suitable for gateway-to-gateway setups.

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